Solving for x, we have:
[tex]\begin{gathered} \frac{4}{3}=\frac{x}{9} \\ \frac{4}{3}\cdot9=x\text{ (Multiplying by 9 on both sides of the equation)} \\ \frac{36}{3}=x\text{ (Multiplying 9 by the fraction)} \\ 12=x\text{ (Simplifying)} \\ \text{The answer is x=12} \end{gathered}[/tex]