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Finding the Fourth Proportional to 14,781.92, 22,147.80 and 8,926.20

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Solution

The fourth proportional to 14,781.92, 22,147.80 and 8,926.20 is: 13,374.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.92 : 22,147.80 = 8,926.20 : x
  2. Step 2: Convert to fraction form
    14,781.92/22,147.80 = 8,926.20/x
  3. Step 3: Cross multiply
    14,781.92x = 22,147.80 × 8,926.20
  4. Step 4: Simplify right side
    14,781.92x = 197,695,692.36
  5. Step 5: Solve for x
    x = 197,695,692.36/14,781.92
  6. Step 6: Final answer
    x = 13,374.16

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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.