Home / 8,132.09-12,199.85-3,134.59

Finding the Fourth Proportional to 8,132.09, 12,199.85 and 3,134.59

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Solution

The fourth proportional to 8,132.09, 12,199.85 and 3,134.59 is: 4,702.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,132.09 : 12,199.85 = 3,134.59 : x
  2. Step 2: Convert to fraction form
    8,132.09/12,199.85 = 3,134.59/x
  3. Step 3: Cross multiply
    8,132.09x = 12,199.85 × 3,134.59
  4. Step 4: Simplify right side
    8,132.09x = 38,241,451.14
  5. Step 5: Solve for x
    x = 38,241,451.14/8,132.09
  6. Step 6: Final answer
    x = 4,702.54

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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.