Home / 8,115.34-11,199.17-4,389.34

Finding the Fourth Proportional to 8,115.34, 11,199.17 and 4,389.34

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Solution

The fourth proportional to 8,115.34, 11,199.17 and 4,389.34 is: 6,057.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.34 : 11,199.17 = 4,389.34 : x
  2. Step 2: Convert to fraction form
    8,115.34/11,199.17 = 4,389.34/x
  3. Step 3: Cross multiply
    8,115.34x = 11,199.17 × 4,389.34
  4. Step 4: Simplify right side
    8,115.34x = 49,156,964.85
  5. Step 5: Solve for x
    x = 49,156,964.85/8,115.34
  6. Step 6: Final answer
    x = 6,057.29

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Half scale
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Double scale
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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.