Home / 8,138.94-11,229.87-4,601.38

Finding the Fourth Proportional to 8,138.94, 11,229.87 and 4,601.38

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Solution

The fourth proportional to 8,138.94, 11,229.87 and 4,601.38 is: 6,348.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.94 : 11,229.87 = 4,601.38 : x
  2. Step 2: Convert to fraction form
    8,138.94/11,229.87 = 4,601.38/x
  3. Step 3: Cross multiply
    8,138.94x = 11,229.87 × 4,601.38
  4. Step 4: Simplify right side
    8,138.94x = 51,672,899.22
  5. Step 5: Solve for x
    x = 51,672,899.22/8,138.94
  6. Step 6: Final answer
    x = 6,348.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.