Home / 8,439.18-12,659.19-3,508.30

Finding the Fourth Proportional to 8,439.18, 12,659.19 and 3,508.30

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Solution

The fourth proportional to 8,439.18, 12,659.19 and 3,508.30 is: 5,262.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.18 : 12,659.19 = 3,508.30 : x
  2. Step 2: Convert to fraction form
    8,439.18/12,659.19 = 3,508.30/x
  3. Step 3: Cross multiply
    8,439.18x = 12,659.19 × 3,508.30
  4. Step 4: Simplify right side
    8,439.18x = 44,412,236.28
  5. Step 5: Solve for x
    x = 44,412,236.28/8,439.18
  6. Step 6: Final answer
    x = 5,262.62

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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.