What is the answer to 4/9 =(12)/x ?

The answer to 4/9 =(12)/x is x=27

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4/9 =(12)/x

\frac{4}{9} = \frac{12}{x}

x = 27

Solution steps

\frac{4}{9} = \frac{12}{x}

Cross multiply

4 x = 108

Divide both sides by

4

x = 27

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 27

100 = \frac{4 x ^{2}}{( 2 - x ) ^{2}}

1 + \frac{1}{x} = \frac{12}{x ^{2}}

\frac{x ^{3} + x + 2}{x ^{2} + 1} = 2

\frac{7}{3} = \frac{42}{y}

- 4 = \frac{x}{1200 - x}