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Finding the Fourth Proportional to 16,461.72, 22,717 and 8,907.88

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Solution

The fourth proportional to 16,461.72, 22,717 and 8,907.88 is: 12,292.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,461.72 : 22,717 = 8,907.88 : x
  2. Step 2: Convert to fraction form
    16,461.72/22,717 = 8,907.88/x
  3. Step 3: Cross multiply
    16,461.72x = 22,717 × 8,907.88
  4. Step 4: Simplify right side
    16,461.72x = 202,360,309.96
  5. Step 5: Solve for x
    x = 202,360,309.96/16,461.72
  6. Step 6: Final answer
    x = 12,292.78

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1.5x scale

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.