Home / 13,251.30-18,285.90-7,282.85

Finding the Fourth Proportional to 13,251.30, 18,285.90 and 7,282.85

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Solution

The fourth proportional to 13,251.30, 18,285.90 and 7,282.85 is: 10,049.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.30 : 18,285.90 = 7,282.85 : x
  2. Step 2: Convert to fraction form
    13,251.30/18,285.90 = 7,282.85/x
  3. Step 3: Cross multiply
    13,251.30x = 18,285.90 × 7,282.85
  4. Step 4: Simplify right side
    13,251.30x = 133,173,375.39
  5. Step 5: Solve for x
    x = 133,173,375.39/13,251.30
  6. Step 6: Final answer
    x = 10,049.83

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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.