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Finding the Fourth Proportional to 16,413, 22,650 and 8,961

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Solution

The fourth proportional to 16,413, 22,650 and 8,961 is: 12,366.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,413 : 22,650 = 8,961 : x
  2. Step 2: Convert to fraction form
    16,413/22,650 = 8,961/x
  3. Step 3: Cross multiply
    16,413x = 22,650 × 8,961
  4. Step 4: Simplify right side
    16,413x = 202,966,650
  5. Step 5: Solve for x
    x = 202,966,650/16,413
  6. Step 6: Final answer
    x = 12,366.21

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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.