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Finding the Fourth Proportional to 10,893.12, 15,027.84 and 8,525.76

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Solution

The fourth proportional to 10,893.12, 15,027.84 and 8,525.76 is: 11,761.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,893.12 : 15,027.84 = 8,525.76 : x
  2. Step 2: Convert to fraction form
    10,893.12/15,027.84 = 8,525.76/x
  3. Step 3: Cross multiply
    10,893.12x = 15,027.84 × 8,525.76
  4. Step 4: Simplify right side
    10,893.12x = 128,123,757.16
  5. Step 5: Solve for x
    x = 128,123,757.16/10,893.12
  6. Step 6: Final answer
    x = 11,761.90

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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.