SUM(If a cell contains a certain word, then return the value of that cell (another cell))

I did a search and could not find the solution, so there it goes:

I have a table with nine funds (c4:c12) and a style for each fund (D4:D12), I want a formula in C17 that will sum the weight of each fund (b4:b12) if d4=Balanced, d5=Balanced, d6=Balanced and so on.

Can I do this? I tried with =SUM(IF(D4:D12=''Balanced'';B4:B12;'''') but it gave back an error.

Can you help me?