Home / 15,183.87-20,951.27-8,469.33

Finding the Fourth Proportional to 15,183.87, 20,951.27 and 8,469.33

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Solution

The fourth proportional to 15,183.87, 20,951.27 and 8,469.33 is: 11,686.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,183.87 : 20,951.27 = 8,469.33 : x
  2. Step 2: Convert to fraction form
    15,183.87/20,951.27 = 8,469.33/x
  3. Step 3: Cross multiply
    15,183.87x = 20,951.27 × 8,469.33
  4. Step 4: Simplify right side
    15,183.87x = 177,443,177.20
  5. Step 5: Solve for x
    x = 177,443,177.20/15,183.87
  6. Step 6: Final answer
    x = 11,686.29

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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.