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Finding the Fourth Proportional to 11,990.34, 16,546.76 and 6,612.97

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Solution

The fourth proportional to 11,990.34, 16,546.76 and 6,612.97 is: 9,125.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.34 : 16,546.76 = 6,612.97 : x
  2. Step 2: Convert to fraction form
    11,990.34/16,546.76 = 6,612.97/x
  3. Step 3: Cross multiply
    11,990.34x = 16,546.76 × 6,612.97
  4. Step 4: Simplify right side
    11,990.34x = 109,423,237.94
  5. Step 5: Solve for x
    x = 109,423,237.94/11,990.34
  6. Step 6: Final answer
    x = 9,125.95

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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.