3/9 = x/27

To solve this equation, we can use the concept of cross-multiplication.

Cross-multiplication is done by multiplying the numerator of the first fraction by the denominator of the second fraction, and then multiplying the denominator of the first fraction by the numerator of the second fraction.

In this case, we have:

3 * 27 = 9 * x

81 = 9x

To isolate the variable x, we divide both sides of the equation by 9:

81/9 = 9x/9

9 = x

Therefore, the value of x is 9.