Home / 8,239.30-12,353.08-3,854.37

Finding the Fourth Proportional to 8,239.30, 12,353.08 and 3,854.37

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Solution

The fourth proportional to 8,239.30, 12,353.08 and 3,854.37 is: 5,778.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239.30 : 12,353.08 = 3,854.37 : x
  2. Step 2: Convert to fraction form
    8,239.30/12,353.08 = 3,854.37/x
  3. Step 3: Cross multiply
    8,239.30x = 12,353.08 × 3,854.37
  4. Step 4: Simplify right side
    8,239.30x = 47,613,340.96
  5. Step 5: Solve for x
    x = 47,613,340.96/8,239.30
  6. Step 6: Final answer
    x = 5,778.81

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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.