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Finding the Fourth Proportional to 14,877.49, 20,530.92 and 8,163.16

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Solution

The fourth proportional to 14,877.49, 20,530.92 and 8,163.16 is: 11,265.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,877.49 : 20,530.92 = 8,163.16 : x
  2. Step 2: Convert to fraction form
    14,877.49/20,530.92 = 8,163.16/x
  3. Step 3: Cross multiply
    14,877.49x = 20,530.92 × 8,163.16
  4. Step 4: Simplify right side
    14,877.49x = 167,597,184.91
  5. Step 5: Solve for x
    x = 167,597,184.91/14,877.49
  6. Step 6: Final answer
    x = 11,265.15

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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.