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Finding the Fourth Proportional to 11,672.69, 16,108.20 and 6,367.55

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Solution

The fourth proportional to 11,672.69, 16,108.20 and 6,367.55 is: 8,787.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,672.69 : 16,108.20 = 6,367.55 : x
  2. Step 2: Convert to fraction form
    11,672.69/16,108.20 = 6,367.55/x
  3. Step 3: Cross multiply
    11,672.69x = 16,108.20 × 6,367.55
  4. Step 4: Simplify right side
    11,672.69x = 102,569,688.37
  5. Step 5: Solve for x
    x = 102,569,688.37/11,672.69
  6. Step 6: Final answer
    x = 8,787.15

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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.