Answer:
18 inches
Step-by-step explanation:
We have that,
Length of the photo, = 6 inches and Width of the photo, = 4 inches.
Now, the photo is enlarged with the new width i.e. is 12 inches.
Let, the length of the enlarged photo i.e. be x inches.
Since, the ratio between length and width remains same, we have the relation,
i.e.
i.e.
i.e.
i.e.
i.e.
Hence, the length of enlarged photo is 18 inches.