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Finding the Fourth Proportional to 8,980.67, 13,459.11 and 6,892.70

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Solution

The fourth proportional to 8,980.67, 13,459.11 and 6,892.70 is: 10,329.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.67 : 13,459.11 = 6,892.70 : x
  2. Step 2: Convert to fraction form
    8,980.67/13,459.11 = 6,892.70/x
  3. Step 3: Cross multiply
    8,980.67x = 13,459.11 × 6,892.70
  4. Step 4: Simplify right side
    8,980.67x = 92,769,540.20
  5. Step 5: Solve for x
    x = 92,769,540.20/8,980.67
  6. Step 6: Final answer
    x = 10,329.92

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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.