Home / 8,132.40-12,198.60-3,758.40

Finding the Fourth Proportional to 8,132.40, 12,198.60 and 3,758.40

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Solution

The fourth proportional to 8,132.40, 12,198.60 and 3,758.40 is: 5,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,132.40 : 12,198.60 = 3,758.40 : x
  2. Step 2: Convert to fraction form
    8,132.40/12,198.60 = 3,758.40/x
  3. Step 3: Cross multiply
    8,132.40x = 12,198.60 × 3,758.40
  4. Step 4: Simplify right side
    8,132.40x = 45,847,218.24
  5. Step 5: Solve for x
    x = 45,847,218.24/8,132.40
  6. Step 6: Final answer
    x = 5,637.60

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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.