Home / 8,679.68-13,016.82-3,132.30

Finding the Fourth Proportional to 8,679.68, 13,016.82 and 3,132.30

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Solution

The fourth proportional to 8,679.68, 13,016.82 and 3,132.30 is: 4,697.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.68 : 13,016.82 = 3,132.30 : x
  2. Step 2: Convert to fraction form
    8,679.68/13,016.82 = 3,132.30/x
  3. Step 3: Cross multiply
    8,679.68x = 13,016.82 × 3,132.30
  4. Step 4: Simplify right side
    8,679.68x = 40,772,585.29
  5. Step 5: Solve for x
    x = 40,772,585.29/8,679.68
  6. Step 6: Final answer
    x = 4,697.48

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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.