Home / 11,197.38-15,450.56-6,480.76

Finding the Fourth Proportional to 11,197.38, 15,450.56 and 6,480.76

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Solution

The fourth proportional to 11,197.38, 15,450.56 and 6,480.76 is: 8,942.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,197.38 : 15,450.56 = 6,480.76 : x
  2. Step 2: Convert to fraction form
    11,197.38/15,450.56 = 6,480.76/x
  3. Step 3: Cross multiply
    11,197.38x = 15,450.56 × 6,480.76
  4. Step 4: Simplify right side
    11,197.38x = 100,131,371.23
  5. Step 5: Solve for x
    x = 100,131,371.23/11,197.38
  6. Step 6: Final answer
    x = 8,942.39

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Double scale
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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.