To solve the equation
\[ \frac{3x}{8} = 6, \]
we can start by isolating \(x\).
- Multiply both sides by 8 to eliminate the fraction:
\[ 3x = 6 \times 8. \]
Calculating the right-hand side:
\[ 3x = 48. \]
- Now, divide both sides by 3 to solve for \(x\):
\[ x = \frac{48}{3}. \]
Calculating this gives:
\[ x = 16. \]
Thus, the solution is
\[ \boxed{16}. \]