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Finding the Fourth Proportional to 8,864.12, 13,280.48 and 8,337.30

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Solution

The fourth proportional to 8,864.12, 13,280.48 and 8,337.30 is: 12,491.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,864.12 : 13,280.48 = 8,337.30 : x
  2. Step 2: Convert to fraction form
    8,864.12/13,280.48 = 8,337.30/x
  3. Step 3: Cross multiply
    8,864.12x = 13,280.48 × 8,337.30
  4. Step 4: Simplify right side
    8,864.12x = 110,723,345.90
  5. Step 5: Solve for x
    x = 110,723,345.90/8,864.12
  6. Step 6: Final answer
    x = 12,491.18

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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.