The length of line segment XZ in triangle PQR, given PQ =
in, QR =
in, and PR =
in, is
inches based on similarity ratios.
In similar triangles, corresponding sides are proportional. The ratio of corresponding sides in similar triangles is equal. For triangles PQR and XYZ:
![\[ (PQ)/(XY) = (QR)/(YZ) = (PR)/(XZ) \]](https://img.qammunity.org/2022/formulas/mathematics/college/ln3oozu4opve4u8u62pyyf8sj7jmzjq7s0.png)
Given that
in,
in,
in,
in, and
in:
![\[ (4)/(6) = (6)/(9) = (9)/(XZ) \]](https://img.qammunity.org/2022/formulas/mathematics/college/mh5kzfls0f8e1ev9b81o5zncslkxtr627c.png)
Simplify the ratios:
![\[ (2)/(3) = (2)/(3) = (9)/(XZ) \]](https://img.qammunity.org/2022/formulas/mathematics/college/deeqivb41yuimv8z2f2dk4lm4w298pbwl6.png)
Now, solve for XZ:

Therefore, the length of line segment XZ is
inches.