Calculating Odds and Outs

[msmith379]

I have been working on playing more by calculating my pot odds and my outs on deciding wheter to call bets. I want to make sure my thinking and understanding is correct. Look at the example below and let me know if I am correct.

Two players left. I am dealt As, 4s on the button. Pot is 4k and the flop is Ks, 3s, and 6h. First player to act who has similar chip stack as me bets 1k.

Looking at this flop I have the flush draw. I am getting 5 to 1 odds to call since there is now 5k in the pot. There are 45 cards left in the deck and 4 of the 13 spades are accounted for. The other player could have trips but for now lets put them on a pair of kings which leaves the other 3 A's to help me out. That leaves 9 spades and 3 aces in the deck to help.

So 12 out of 45 for about 4.5 to 1 outs. Even though it is close to my 5 to 1 pot odds the pot odds are better so I would call this bet or do I have my numbers opposite.

Sorry for this being long winded just trying to get my hands around this.

Thanks for the help