Home / 15,385.38-21,229.22-8,577.92

Finding the Fourth Proportional to 15,385.38, 21,229.22 and 8,577.92

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Solution

The fourth proportional to 15,385.38, 21,229.22 and 8,577.92 is: 11,836.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,385.38 : 21,229.22 = 8,577.92 : x
  2. Step 2: Convert to fraction form
    15,385.38/21,229.22 = 8,577.92/x
  3. Step 3: Cross multiply
    15,385.38x = 21,229.22 × 8,577.92
  4. Step 4: Simplify right side
    15,385.38x = 182,102,550.82
  5. Step 5: Solve for x
    x = 182,102,550.82/15,385.38
  6. Step 6: Final answer
    x = 11,836.08

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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.