Home / 15,517.14-21,376.02-11,531.34

Finding the Fourth Proportional to 15,517.14, 21,376.02 and 11,531.34

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Solution

The fourth proportional to 15,517.14, 21,376.02 and 11,531.34 is: 15,885.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.14 : 21,376.02 = 11,531.34 : x
  2. Step 2: Convert to fraction form
    15,517.14/21,376.02 = 11,531.34/x
  3. Step 3: Cross multiply
    15,517.14x = 21,376.02 × 11,531.34
  4. Step 4: Simplify right side
    15,517.14x = 246,494,154.47
  5. Step 5: Solve for x
    x = 246,494,154.47/15,517.14
  6. Step 6: Final answer
    x = 15,885.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.