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Finding the Fourth Proportional to 16,329.20, 22,542 and 9,612.72

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Solution

The fourth proportional to 16,329.20, 22,542 and 9,612.72 is: 13,270.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,329.20 : 22,542 = 9,612.72 : x
  2. Step 2: Convert to fraction form
    16,329.20/22,542 = 9,612.72/x
  3. Step 3: Cross multiply
    16,329.20x = 22,542 × 9,612.72
  4. Step 4: Simplify right side
    16,329.20x = 216,689,934.24
  5. Step 5: Solve for x
    x = 216,689,934.24/16,329.20
  6. Step 6: Final answer
    x = 13,270.09

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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.