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Finding the Fourth Proportional to 15,107.60, 22,616.60 and 11,229.20

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Solution

The fourth proportional to 15,107.60, 22,616.60 and 11,229.20 is: 16,810.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,107.60 : 22,616.60 = 11,229.20 : x
  2. Step 2: Convert to fraction form
    15,107.60/22,616.60 = 11,229.20/x
  3. Step 3: Cross multiply
    15,107.60x = 22,616.60 × 11,229.20
  4. Step 4: Simplify right side
    15,107.60x = 253,966,324.72
  5. Step 5: Solve for x
    x = 253,966,324.72/15,107.60
  6. Step 6: Final answer
    x = 16,810.50

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1.5x scale

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.