Home / 8,439.35-12,659.09-3,508.88

Finding the Fourth Proportional to 8,439.35, 12,659.09 and 3,508.88

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Solution

The fourth proportional to 8,439.35, 12,659.09 and 3,508.88 is: 5,263.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.35 : 12,659.09 = 3,508.88 : x
  2. Step 2: Convert to fraction form
    8,439.35/12,659.09 = 3,508.88/x
  3. Step 3: Cross multiply
    8,439.35x = 12,659.09 × 3,508.88
  4. Step 4: Simplify right side
    8,439.35x = 44,419,146.88
  5. Step 5: Solve for x
    x = 44,419,146.88/8,439.35
  6. Step 6: Final answer
    x = 5,263.34

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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.