To answer this question, we need to have into account the ratio between the chocolate and the nuts. This ratio is:
![(4)/(6)=(2)/(3)](https://img.qammunity.org/2023/formulas/mathematics/college/7q9ijl0blodevcdj7fyhgplmom266geysh.png)
That is, simplifying the ratio, we have 2 parts of chocolate and 3 parts of nuts. This ratio must be the same for the tablespoon. Then, if we have 18 tablespoons of nuts, then we can pose the situation as follows:
![(4)/(6)=(2)/(3)=(x)/(18)\Rightarrow x=(2\cdot18)/(3)\Rightarrow x=(36)/(3)\Rightarrow x=12](https://img.qammunity.org/2023/formulas/mathematics/college/rzehz00gogjteksdkz70nok8iefmg00v1q.png)
Therefore, we need 12 tablespoons of chocolate to follow the recipe for the party.