Mathematics is the queen of the sciences.C. F. Gauss

OONNONOO

Proportion solver

Find one missing value in a : b = c : d.

6

Enter known values

Fill in the fields below — the result will appear alongside.

Value a

Formulas

a=bcda=\frac{bc}{d}b=adcb=\frac{ad}{c}c=adbc=\frac{ad}{b}d=bcad=\frac{bc}{a}

How it works

Find one missing value in a : b = c : d.

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