Home / 8,712.42-13,073.74-3,447.92

Finding the Fourth Proportional to 8,712.42, 13,073.74 and 3,447.92

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Solution

The fourth proportional to 8,712.42, 13,073.74 and 3,447.92 is: 5,173.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.42 : 13,073.74 = 3,447.92 : x
  2. Step 2: Convert to fraction form
    8,712.42/13,073.74 = 3,447.92/x
  3. Step 3: Cross multiply
    8,712.42x = 13,073.74 × 3,447.92
  4. Step 4: Simplify right side
    8,712.42x = 45,077,209.62
  5. Step 5: Solve for x
    x = 45,077,209.62/8,712.42
  6. Step 6: Final answer
    x = 5,173.90

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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.