Home / 12,592.28-17,356.60-9,229.78

Finding the Fourth Proportional to 12,592.28, 17,356.60 and 9,229.78

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Solution

The fourth proportional to 12,592.28, 17,356.60 and 9,229.78 is: 12,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,592.28 : 17,356.60 = 9,229.78 : x
  2. Step 2: Convert to fraction form
    12,592.28/17,356.60 = 9,229.78/x
  3. Step 3: Cross multiply
    12,592.28x = 17,356.60 × 9,229.78
  4. Step 4: Simplify right side
    12,592.28x = 160,197,599.55
  5. Step 5: Solve for x
    x = 160,197,599.55/12,592.28
  6. Step 6: Final answer
    x = 12,721.89

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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.