Do PS3 and PS4 use the same power cord?
As long as you're not using the original PS3 model cord, you shouldn't have any problems using the slim cord with the PS4. The original PS3 uses a three-prong AC cord. All PS4 consoles use a standard figure 8 cord, like the PS3 Slim and Super Slim. Therefore, it should work with no problems on your PS4.