Home / 7,988.11-11,982.16-2,443.15

Finding the Fourth Proportional to 7,988.11, 11,982.16 and 2,443.15

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Solution

The fourth proportional to 7,988.11, 11,982.16 and 2,443.15 is: 3,664.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.11 : 11,982.16 = 2,443.15 : x
  2. Step 2: Convert to fraction form
    7,988.11/11,982.16 = 2,443.15/x
  3. Step 3: Cross multiply
    7,988.11x = 11,982.16 × 2,443.15
  4. Step 4: Simplify right side
    7,988.11x = 29,274,214.20
  5. Step 5: Solve for x
    x = 29,274,214.20/7,988.11
  6. Step 6: Final answer
    x = 3,664.72

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Similar ratio
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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.