Home / 8,078.38-12,121.08-4,383.22

Finding the Fourth Proportional to 8,078.38, 12,121.08 and 4,383.22

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Solution

The fourth proportional to 8,078.38, 12,121.08 and 4,383.22 is: 6,576.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.38 : 12,121.08 = 4,383.22 : x
  2. Step 2: Convert to fraction form
    8,078.38/12,121.08 = 4,383.22/x
  3. Step 3: Cross multiply
    8,078.38x = 12,121.08 × 4,383.22
  4. Step 4: Simplify right side
    8,078.38x = 53,129,360.28
  5. Step 5: Solve for x
    x = 53,129,360.28/8,078.38
  6. Step 6: Final answer
    x = 6,576.73

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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.