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Finding the Fourth Proportional to 16,424.63, 22,666.07 and 8,972.63

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Solution

The fourth proportional to 16,424.63, 22,666.07 and 8,972.63 is: 12,382.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,424.63 : 22,666.07 = 8,972.63 : x
  2. Step 2: Convert to fraction form
    16,424.63/22,666.07 = 8,972.63/x
  3. Step 3: Cross multiply
    16,424.63x = 22,666.07 × 8,972.63
  4. Step 4: Simplify right side
    16,424.63x = 203,374,168.77
  5. Step 5: Solve for x
    x = 203,374,168.77/16,424.63
  6. Step 6: Final answer
    x = 12,382.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.