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Finding the Fourth Proportional to 14,824.18, 20,456.50 and 8,108.47

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Solution

The fourth proportional to 14,824.18, 20,456.50 and 8,108.47 is: 11,189.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,824.18 : 20,456.50 = 8,108.47 : x
  2. Step 2: Convert to fraction form
    14,824.18/20,456.50 = 8,108.47/x
  3. Step 3: Cross multiply
    14,824.18x = 20,456.50 × 8,108.47
  4. Step 4: Simplify right side
    14,824.18x = 165,870,937.06
  5. Step 5: Solve for x
    x = 165,870,937.06/14,824.18
  6. Step 6: Final answer
    x = 11,189.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.