Home / 12,778.26-19,167.39-4,013.85

Finding the Fourth Proportional to 12,778.26, 19,167.39 and 4,013.85

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Solution

The fourth proportional to 12,778.26, 19,167.39 and 4,013.85 is: 6,020.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778.26 : 19,167.39 = 4,013.85 : x
  2. Step 2: Convert to fraction form
    12,778.26/19,167.39 = 4,013.85/x
  3. Step 3: Cross multiply
    12,778.26x = 19,167.39 × 4,013.85
  4. Step 4: Simplify right side
    12,778.26x = 76,935,028.35
  5. Step 5: Solve for x
    x = 76,935,028.35/12,778.26
  6. Step 6: Final answer
    x = 6,020.78

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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.