The players on a baseball team are comparing the number of homeruns they hit during the season. The third baseman hit twice as many as the second baseman. The first baseman’s and shortstop’s numbers are proportional with those of the third baseman and second baseman. If the second baseman hit 4 homeruns more than the shortstop, how many more homeruns did the 3rd baseman hit than the 1st baseman?