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Finding the Fourth Proportional to 8,508.88, 12,757.20 and 4,294.77

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Solution

The fourth proportional to 8,508.88, 12,757.20 and 4,294.77 is: 6,439.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.88 : 12,757.20 = 4,294.77 : x
  2. Step 2: Convert to fraction form
    8,508.88/12,757.20 = 4,294.77/x
  3. Step 3: Cross multiply
    8,508.88x = 12,757.20 × 4,294.77
  4. Step 4: Simplify right side
    8,508.88x = 54,789,239.84
  5. Step 5: Solve for x
    x = 54,789,239.84/8,508.88
  6. Step 6: Final answer
    x = 6,439.07

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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.