1. **Stating the problem:** We have two right triangles with sides labeled and relationships given. We want to find the values of $x$ and $y$ using the given ratios and the fact that $x=16$.
2. **Given information:**
- From the smaller triangle: sides $y$ and 6.
- From the larger triangle: sides $x$, $4x$, and $y$.
- A perpendicular segment of length 16 inside the larger triangle.
- The equation $\frac{y}{x} = \frac{x}{y}$.
- The value $x=16$.
3. **Using the ratio $\frac{y}{x} = \frac{x}{y}$:**
$$\frac{y}{x} = \frac{x}{y}$$
Cross-multiplied:
$$y \cdot y = x \cdot x$$
$$y^2 = x^2$$
Taking square roots:
$$y = \pm x$$
Since lengths are positive, we take:
$$y = x$$
4. **Substitute $x=16$ into $y = x$:**
$$y = 16$$
5. **Check the other given information:**
- The side labeled $4x$ becomes $4 \times 16 = 64$.
- The perpendicular segment is 16.
6. **Summary:**
- $x = 16$
- $y = 16$
These satisfy the given ratio and the figure's labels.
**Final answer:**
$$x = 16, \quad y = 16$$
Triangle Sides 5D6315
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