Home / 15,167.25-20,930.94-8,879.76

Finding the Fourth Proportional to 15,167.25, 20,930.94 and 8,879.76

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Solution

The fourth proportional to 15,167.25, 20,930.94 and 8,879.76 is: 12,254.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167.25 : 20,930.94 = 8,879.76 : x
  2. Step 2: Convert to fraction form
    15,167.25/20,930.94 = 8,879.76/x
  3. Step 3: Cross multiply
    15,167.25x = 20,930.94 × 8,879.76
  4. Step 4: Simplify right side
    15,167.25x = 185,861,723.77
  5. Step 5: Solve for x
    x = 185,861,723.77/15,167.25
  6. Step 6: Final answer
    x = 12,254.15

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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.