Home / 18,451.12-27,702.60-9,451.70

Finding the Fourth Proportional to 18,451.12, 27,702.60 and 9,451.70

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Solution

The fourth proportional to 18,451.12, 27,702.60 and 9,451.70 is: 14,190.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,451.12 : 27,702.60 = 9,451.70 : x
  2. Step 2: Convert to fraction form
    18,451.12/27,702.60 = 9,451.70/x
  3. Step 3: Cross multiply
    18,451.12x = 27,702.60 × 9,451.70
  4. Step 4: Simplify right side
    18,451.12x = 261,836,664.42
  5. Step 5: Solve for x
    x = 261,836,664.42/18,451.12
  6. Step 6: Final answer
    x = 14,190.83

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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.