Home / 6,916.78-9,546.24-4,123.90

Finding the Fourth Proportional to 6,916.78, 9,546.24 and 4,123.90

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Solution

The fourth proportional to 6,916.78, 9,546.24 and 4,123.90 is: 5,691.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916.78 : 9,546.24 = 4,123.90 : x
  2. Step 2: Convert to fraction form
    6,916.78/9,546.24 = 4,123.90/x
  3. Step 3: Cross multiply
    6,916.78x = 9,546.24 × 4,123.90
  4. Step 4: Simplify right side
    6,916.78x = 39,367,739.14
  5. Step 5: Solve for x
    x = 39,367,739.14/6,916.78
  6. Step 6: Final answer
    x = 5,691.63

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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.