Poker Min raising 4 handed final table

So I ran into what was clearly a mistake on my part. I started with JJ on the button and min raised to 7K with the chip leader in the big blind. (I was hoping he would raise and I could shove over the top.)

He tanked forever and decided to flat call / check the flop

Flop was 6-6-8 I bet the pot. He flat called

Turn was another low card so he checked I shoved and he called (10-6) was his hand.

I know I messed up because he isn't in even if I make a pot size bet pre-flop

That said what is the minimum you guys would raise pre in 4-handed play?

Source.