Home / 8,192.67-12,279.39-3,800.88

Finding the Fourth Proportional to 8,192.67, 12,279.39 and 3,800.88

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Solution

The fourth proportional to 8,192.67, 12,279.39 and 3,800.88 is: 5,696.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,192.67 : 12,279.39 = 3,800.88 : x
  2. Step 2: Convert to fraction form
    8,192.67/12,279.39 = 3,800.88/x
  3. Step 3: Cross multiply
    8,192.67x = 12,279.39 × 3,800.88
  4. Step 4: Simplify right side
    8,192.67x = 46,672,487.86
  5. Step 5: Solve for x
    x = 46,672,487.86/8,192.67
  6. Step 6: Final answer
    x = 5,696.86

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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.