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Finding the Fourth Proportional to 10,866.42, 14,997.51 and 6,149.70

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Solution

The fourth proportional to 10,866.42, 14,997.51 and 6,149.70 is: 8,487.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866.42 : 14,997.51 = 6,149.70 : x
  2. Step 2: Convert to fraction form
    10,866.42/14,997.51 = 6,149.70/x
  3. Step 3: Cross multiply
    10,866.42x = 14,997.51 × 6,149.70
  4. Step 4: Simplify right side
    10,866.42x = 92,230,187.25
  5. Step 5: Solve for x
    x = 92,230,187.25/10,866.42
  6. Step 6: Final answer
    x = 8,487.63

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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.