Home / 8,419.13-12,629.20-2,575.79

Finding the Fourth Proportional to 8,419.13, 12,629.20 and 2,575.79

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Solution

The fourth proportional to 8,419.13, 12,629.20 and 2,575.79 is: 3,863.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.13 : 12,629.20 = 2,575.79 : x
  2. Step 2: Convert to fraction form
    8,419.13/12,629.20 = 2,575.79/x
  3. Step 3: Cross multiply
    8,419.13x = 12,629.20 × 2,575.79
  4. Step 4: Simplify right side
    8,419.13x = 32,530,097.48
  5. Step 5: Solve for x
    x = 32,530,097.48/8,419.13
  6. Step 6: Final answer
    x = 3,863.83

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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.