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Finding the Fourth Proportional to 11,416.17, 15,754.22 and 6,380.61

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Solution

The fourth proportional to 11,416.17, 15,754.22 and 6,380.61 is: 8,805.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,416.17 : 15,754.22 = 6,380.61 : x
  2. Step 2: Convert to fraction form
    11,416.17/15,754.22 = 6,380.61/x
  3. Step 3: Cross multiply
    11,416.17x = 15,754.22 × 6,380.61
  4. Step 4: Simplify right side
    11,416.17x = 100,521,490.55
  5. Step 5: Solve for x
    x = 100,521,490.55/11,416.17
  6. Step 6: Final answer
    x = 8,805.18

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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.