Home / 8,882.10-12,244.32-6,990.12

Finding the Fourth Proportional to 8,882.10, 12,244.32 and 6,990.12

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Solution

The fourth proportional to 8,882.10, 12,244.32 and 6,990.12 is: 9,636.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,882.10 : 12,244.32 = 6,990.12 : x
  2. Step 2: Convert to fraction form
    8,882.10/12,244.32 = 6,990.12/x
  3. Step 3: Cross multiply
    8,882.10x = 12,244.32 × 6,990.12
  4. Step 4: Simplify right side
    8,882.10x = 85,589,266.12
  5. Step 5: Solve for x
    x = 85,589,266.12/8,882.10
  6. Step 6: Final answer
    x = 9,636.15

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Half scale
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Double scale
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Similar ratio
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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.