Home / 13,517.91-20,277-4,752.90

Finding the Fourth Proportional to 13,517.91, 20,277 and 4,752.90

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Solution

The fourth proportional to 13,517.91, 20,277 and 4,752.90 is: 7,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.91 : 20,277 = 4,752.90 : x
  2. Step 2: Convert to fraction form
    13,517.91/20,277 = 4,752.90/x
  3. Step 3: Cross multiply
    13,517.91x = 20,277 × 4,752.90
  4. Step 4: Simplify right side
    13,517.91x = 96,374,553.30
  5. Step 5: Solve for x
    x = 96,374,553.30/13,517.91
  6. Step 6: Final answer
    x = 7,129.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.