First let's know that the conversion between feet and yards is 3 feet equals 1 yard.
And so our two quantities of 12 feet and 4 yards would be more comparable is we convert the 4 yards to feet:
And so 12 feet is the same as 4 yards. They are equal.
See Also
Is the goal of 12,000 steps per day sufficient for improving body composition and metabolic syndrome? The necessity of combining exercise intensity: a randomized controlled trialSteps to Yards | Kyle's ConverterShould You Really Take 10,000 Steps A Day? - Fitbit Blog8 ways to get in your steps from home—yes, it's totally possible