Home / 8,679.50-13,016.55-3,132.12

Finding the Fourth Proportional to 8,679.50, 13,016.55 and 3,132.12

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Solution

The fourth proportional to 8,679.50, 13,016.55 and 3,132.12 is: 4,697.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.50 : 13,016.55 = 3,132.12 : x
  2. Step 2: Convert to fraction form
    8,679.50/13,016.55 = 3,132.12/x
  3. Step 3: Cross multiply
    8,679.50x = 13,016.55 × 3,132.12
  4. Step 4: Simplify right side
    8,679.50x = 40,769,396.59
  5. Step 5: Solve for x
    x = 40,769,396.59/8,679.50
  6. Step 6: Final answer
    x = 4,697.21

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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.