Fort Lauderdale is about 14 times smaller than Los Angeles.

Los Angeles (including the city proper only) is approximately 1,215 sq km, while Fort Lauderdale (excluding the city's 9.9 sq km of water area) is approximately 90 sq km, making Fort Lauderdale 7.41% the size of Los Angeles.
Tip: This to-scale comparison of Los Angeles vs. Fort Lauderdale uses the Mercator projection, which distorts the size of regions near the poles.