Home / 8,654.33-12,972.68-3,971.12

Finding the Fourth Proportional to 8,654.33, 12,972.68 and 3,971.12

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Solution

The fourth proportional to 8,654.33, 12,972.68 and 3,971.12 is: 5,952.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,654.33 : 12,972.68 = 3,971.12 : x
  2. Step 2: Convert to fraction form
    8,654.33/12,972.68 = 3,971.12/x
  3. Step 3: Cross multiply
    8,654.33x = 12,972.68 × 3,971.12
  4. Step 4: Simplify right side
    8,654.33x = 51,515,984.28
  5. Step 5: Solve for x
    x = 51,515,984.28/8,654.33
  6. Step 6: Final answer
    x = 5,952.63

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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.