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Finding the Fourth Proportional to 8,499.32, 12,748.96 and 2,655.92

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Solution

The fourth proportional to 8,499.32, 12,748.96 and 2,655.92 is: 3,983.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,499.32 : 12,748.96 = 2,655.92 : x
  2. Step 2: Convert to fraction form
    8,499.32/12,748.96 = 2,655.92/x
  3. Step 3: Cross multiply
    8,499.32x = 12,748.96 × 2,655.92
  4. Step 4: Simplify right side
    8,499.32x = 33,860,217.84
  5. Step 5: Solve for x
    x = 33,860,217.84/8,499.32
  6. Step 6: Final answer
    x = 3,983.87

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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.