Home / 18,790.76-28,189.37-6,311.97

Finding the Fourth Proportional to 18,790.76, 28,189.37 and 6,311.97

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Solution

The fourth proportional to 18,790.76, 28,189.37 and 6,311.97 is: 9,469.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790.76 : 28,189.37 = 6,311.97 : x
  2. Step 2: Convert to fraction form
    18,790.76/28,189.37 = 6,311.97/x
  3. Step 3: Cross multiply
    18,790.76x = 28,189.37 × 6,311.97
  4. Step 4: Simplify right side
    18,790.76x = 177,930,426.20
  5. Step 5: Solve for x
    x = 177,930,426.20/18,790.76
  6. Step 6: Final answer
    x = 9,469.04

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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.