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Finding the Fourth Proportional to 14,604.96, 20,149.92 and 8,312.88

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Solution

The fourth proportional to 14,604.96, 20,149.92 and 8,312.88 is: 11,468.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,604.96 : 20,149.92 = 8,312.88 : x
  2. Step 2: Convert to fraction form
    14,604.96/20,149.92 = 8,312.88/x
  3. Step 3: Cross multiply
    14,604.96x = 20,149.92 × 8,312.88
  4. Step 4: Simplify right side
    14,604.96x = 167,503,866.97
  5. Step 5: Solve for x
    x = 167,503,866.97/14,604.96
  6. Step 6: Final answer
    x = 11,468.97

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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.