Home / 9,200.20-13,800.30-8,689.90

Finding the Fourth Proportional to 9,200.20, 13,800.30 and 8,689.90

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Solution

The fourth proportional to 9,200.20, 13,800.30 and 8,689.90 is: 13,034.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,200.20 : 13,800.30 = 8,689.90 : x
  2. Step 2: Convert to fraction form
    9,200.20/13,800.30 = 8,689.90/x
  3. Step 3: Cross multiply
    9,200.20x = 13,800.30 × 8,689.90
  4. Step 4: Simplify right side
    9,200.20x = 119,923,226.97
  5. Step 5: Solve for x
    x = 119,923,226.97/9,200.20
  6. Step 6: Final answer
    x = 13,034.85

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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.