0.75/10 = X/40
0.75/10 = x/40

You entered the following equivalent proportions:

Define the proportion formula:
If 2 proportions are equal:
we can cross multiply to get:
Numerator 1
Denominator 1
Numerator 2
Denominator 2

Numerator 1 * Denominator 2 = Denominator 1 * Numerator 2

Solving for Numerator 2 we get:
Numerator 2  =  Numerator 1 * Denominator 2
  Denominator 1

Evaluate and simplfy
x  =  0.75 * 40
  10

x  =  30
  10

Final Answer

x = 3

You have 1 free calculations remaining



What is the Answer?

How does the Proportion Calculator work?

Free Proportion Calculator - 1) Calculates the missing link of 2 equivalent proportions or ratios.
2) Also determines if two numerical proportions that you entered such as 1/10=6/12 are equivalent or not equivalent. Note: You can use all allowable operators such as =,<,≤,>,≥
This calculator has 4 inputs.

What 3 formulas are used for the Proportion Calculator?

What 3 concepts are covered in the Proportion Calculator?

equivalent
equal in value, amount, function, meaning
proportion
n equation in which two ratios are set equal to each other
a/b = c/d
ratio
indicates how many times one number contains another

Example calculations for the Proportion Calculator

Proportion Calculator Video


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Sarah Jenkins

Sarah Jenkins

Senior Technology Editor & AI Specialist

Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.

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