Home / 15,542.40-23,305.10-12,245.70

Finding the Fourth Proportional to 15,542.40, 23,305.10 and 12,245.70

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Solution

The fourth proportional to 15,542.40, 23,305.10 and 12,245.70 is: 18,361.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,542.40 : 23,305.10 = 12,245.70 : x
  2. Step 2: Convert to fraction form
    15,542.40/23,305.10 = 12,245.70/x
  3. Step 3: Cross multiply
    15,542.40x = 23,305.10 × 12,245.70
  4. Step 4: Simplify right side
    15,542.40x = 285,387,201.84
  5. Step 5: Solve for x
    x = 285,387,201.84/15,542.40
  6. Step 6: Final answer
    x = 18,361.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.