Home / 8,439.33-12,659.29-3,173.85

Finding the Fourth Proportional to 8,439.33, 12,659.29 and 3,173.85

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Solution

The fourth proportional to 8,439.33, 12,659.29 and 3,173.85 is: 4,760.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.33 : 12,659.29 = 3,173.85 : x
  2. Step 2: Convert to fraction form
    8,439.33/12,659.29 = 3,173.85/x
  3. Step 3: Cross multiply
    8,439.33x = 12,659.29 × 3,173.85
  4. Step 4: Simplify right side
    8,439.33x = 40,178,727.15
  5. Step 5: Solve for x
    x = 40,178,727.15/8,439.33
  6. Step 6: Final answer
    x = 4,760.89

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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.