Home / 15,182.20-20,951.34-8,467.91

Finding the Fourth Proportional to 15,182.20, 20,951.34 and 8,467.91

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Solution

The fourth proportional to 15,182.20, 20,951.34 and 8,467.91 is: 11,685.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,182.20 : 20,951.34 = 8,467.91 : x
  2. Step 2: Convert to fraction form
    15,182.20/20,951.34 = 8,467.91/x
  3. Step 3: Cross multiply
    15,182.20x = 20,951.34 × 8,467.91
  4. Step 4: Simplify right side
    15,182.20x = 177,414,061.50
  5. Step 5: Solve for x
    x = 177,414,061.50/15,182.20
  6. Step 6: Final answer
    x = 11,685.66

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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.