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Finding the Fourth Proportional to 10,881.73, 15,016.65 and 6,102.12

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Solution

The fourth proportional to 10,881.73, 15,016.65 and 6,102.12 is: 8,420.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,881.73 : 15,016.65 = 6,102.12 : x
  2. Step 2: Convert to fraction form
    10,881.73/15,016.65 = 6,102.12/x
  3. Step 3: Cross multiply
    10,881.73x = 15,016.65 × 6,102.12
  4. Step 4: Simplify right side
    10,881.73x = 91,633,400.30
  5. Step 5: Solve for x
    x = 91,633,400.30/10,881.73
  6. Step 6: Final answer
    x = 8,420.85

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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.