Home / 12,583.20-18,732.48-12,517.92

Finding the Fourth Proportional to 12,583.20, 18,732.48 and 12,517.92

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Solution

The fourth proportional to 12,583.20, 18,732.48 and 12,517.92 is: 18,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,583.20 : 18,732.48 = 12,517.92 : x
  2. Step 2: Convert to fraction form
    12,583.20/18,732.48 = 12,517.92/x
  3. Step 3: Cross multiply
    12,583.20x = 18,732.48 × 12,517.92
  4. Step 4: Simplify right side
    12,583.20x = 234,491,686.04
  5. Step 5: Solve for x
    x = 234,491,686.04/12,583.20
  6. Step 6: Final answer
    x = 18,635.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.