Line P P\,P passes through the points (−1,−5)(-1, -5)(−1,−5) and (2,4)(2, 4)(2,4). Line Q Q\,Q passes through the points (5,1)(5, 1)(5,1) and (10,p)(10, p)(10,p). Line P P\,P and Line Q Q\,Q are parallel. Find the value of ppp.