It seems like some specific numbers are missing from your question regarding the translation of quadrilateral ABCD. However, I can explain how to find the new coordinates of the vertices after the translation.
When you translate a point \((x, y)\) by \(a\) units to the right and \(b\) units down, the new coordinates \((x', y')\) can be found using the following formula:
\[ x' = x + a \] \[ y' = y - b \]
If you provide the values for \(a\) and \(b\), as well as the original coordinates of quadrilateral ABCD's vertices, I can calculate the new coordinates for you.