Find the next 3 terms in the following sequence: 4, 6, 9, 12
The next three terms in the sequence are: 15, 18, 21.
Complete the following task based on the instruction and optional input provided.### Instruction:
Find the next 3 terms in the following sequence: 4, 6, 9, 12

### Output:
The next three terms in the sequence are: 15, 18, 21.