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Finding the Fourth Proportional to 13,650.71, 20,481.06 and 5,755.22

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Solution

The fourth proportional to 13,650.71, 20,481.06 and 5,755.22 is: 8,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.71 : 20,481.06 = 5,755.22 : x
  2. Step 2: Convert to fraction form
    13,650.71/20,481.06 = 5,755.22/x
  3. Step 3: Cross multiply
    13,650.71x = 20,481.06 × 5,755.22
  4. Step 4: Simplify right side
    13,650.71x = 117,872,903.73
  5. Step 5: Solve for x
    x = 117,872,903.73/13,650.71
  6. Step 6: Final answer
    x = 8,634.93

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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.