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Finding the Fourth Proportional to 14,909.20, 22,363.80 and 9,077.20

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Solution

The fourth proportional to 14,909.20, 22,363.80 and 9,077.20 is: 13,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,909.20 : 22,363.80 = 9,077.20 : x
  2. Step 2: Convert to fraction form
    14,909.20/22,363.80 = 9,077.20/x
  3. Step 3: Cross multiply
    14,909.20x = 22,363.80 × 9,077.20
  4. Step 4: Simplify right side
    14,909.20x = 203,000,685.36
  5. Step 5: Solve for x
    x = 203,000,685.36/14,909.20
  6. Step 6: Final answer
    x = 13,615.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.