Home / 8,512.20-12,744.60-4,343.20

Finding the Fourth Proportional to 8,512.20, 12,744.60 and 4,343.20

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Solution

The fourth proportional to 8,512.20, 12,744.60 and 4,343.20 is: 6,502.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.20 : 12,744.60 = 4,343.20 : x
  2. Step 2: Convert to fraction form
    8,512.20/12,744.60 = 4,343.20/x
  3. Step 3: Cross multiply
    8,512.20x = 12,744.60 × 4,343.20
  4. Step 4: Simplify right side
    8,512.20x = 55,352,346.72
  5. Step 5: Solve for x
    x = 55,352,346.72/8,512.20
  6. Step 6: Final answer
    x = 6,502.71

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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.