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Finding the Fourth Proportional to 16,211.43, 22,371.78 and 8,759.43

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Solution

The fourth proportional to 16,211.43, 22,371.78 and 8,759.43 is: 12,088.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,211.43 : 22,371.78 = 8,759.43 : x
  2. Step 2: Convert to fraction form
    16,211.43/22,371.78 = 8,759.43/x
  3. Step 3: Cross multiply
    16,211.43x = 22,371.78 × 8,759.43
  4. Step 4: Simplify right side
    16,211.43x = 195,964,040.89
  5. Step 5: Solve for x
    x = 195,964,040.89/16,211.43
  6. Step 6: Final answer
    x = 12,088.02

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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.