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Finding the Fourth Proportional to 12,137.04, 16,724.48 and 9,304.47

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Solution

The fourth proportional to 12,137.04, 16,724.48 and 9,304.47 is: 12,821.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.04 : 16,724.48 = 9,304.47 : x
  2. Step 2: Convert to fraction form
    12,137.04/16,724.48 = 9,304.47/x
  3. Step 3: Cross multiply
    12,137.04x = 16,724.48 × 9,304.47
  4. Step 4: Simplify right side
    12,137.04x = 155,612,375.90
  5. Step 5: Solve for x
    x = 155,612,375.90/12,137.04
  6. Step 6: Final answer
    x = 12,821.28

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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.