Home / 10,939.26-16,414.25-6,778.16

Finding the Fourth Proportional to 10,939.26, 16,414.25 and 6,778.16

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Solution

The fourth proportional to 10,939.26, 16,414.25 and 6,778.16 is: 10,170.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.26 : 16,414.25 = 6,778.16 : x
  2. Step 2: Convert to fraction form
    10,939.26/16,414.25 = 6,778.16/x
  3. Step 3: Cross multiply
    10,939.26x = 16,414.25 × 6,778.16
  4. Step 4: Simplify right side
    10,939.26x = 111,258,296.82
  5. Step 5: Solve for x
    x = 111,258,296.82/10,939.26
  6. Step 6: Final answer
    x = 10,170.55

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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.