Home / 8,099.12-11,179.92-6,331.30

Finding the Fourth Proportional to 8,099.12, 11,179.92 and 6,331.30

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Solution

The fourth proportional to 8,099.12, 11,179.92 and 6,331.30 is: 8,739.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,099.12 : 11,179.92 = 6,331.30 : x
  2. Step 2: Convert to fraction form
    8,099.12/11,179.92 = 6,331.30/x
  3. Step 3: Cross multiply
    8,099.12x = 11,179.92 × 6,331.30
  4. Step 4: Simplify right side
    8,099.12x = 70,783,423.29
  5. Step 5: Solve for x
    x = 70,783,423.29/8,099.12
  6. Step 6: Final answer
    x = 8,739.64

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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.