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Finding the Fourth Proportional to 8,886.68, 12,249.24 and 6,755.12

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Solution

The fourth proportional to 8,886.68, 12,249.24 and 6,755.12 is: 9,311.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.68 : 12,249.24 = 6,755.12 : x
  2. Step 2: Convert to fraction form
    8,886.68/12,249.24 = 6,755.12/x
  3. Step 3: Cross multiply
    8,886.68x = 12,249.24 × 6,755.12
  4. Step 4: Simplify right side
    8,886.68x = 82,745,086.11
  5. Step 5: Solve for x
    x = 82,745,086.11/8,886.68
  6. Step 6: Final answer
    x = 9,311.14

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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.