This online Proportion Calculator is used to solve proportion problem and find the missing value in a proportion, given three known values.
Solving proportions
Proportion is defined as a statement that two ratios are equal. For example, 1/3 = 5/15. This can also be written in the form 1:3 = 5:15. When two ratios are of equal value, then the values are said to be in equal proportion. The symbol of proportion is “::” or “=”.
In case three numbers of a general proportion A/B = C/D are known, the forth number can be easily found using straightforward calculations. This process is called solving a proportion.
Related calculators
Check out our other math calculators such as Golden Ratio Calculator or Cube Root Calculator.