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Finding the Fourth Proportional to 10,791.86, 16,188.60 and 3,001.28

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Solution

The fourth proportional to 10,791.86, 16,188.60 and 3,001.28 is: 4,502.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.86 : 16,188.60 = 3,001.28 : x
  2. Step 2: Convert to fraction form
    10,791.86/16,188.60 = 3,001.28/x
  3. Step 3: Cross multiply
    10,791.86x = 16,188.60 × 3,001.28
  4. Step 4: Simplify right side
    10,791.86x = 48,586,521.41
  5. Step 5: Solve for x
    x = 48,586,521.41/10,791.86
  6. Step 6: Final answer
    x = 4,502.15

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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.