Home / 12,939.14-19,403.21-4,932.54

Finding the Fourth Proportional to 12,939.14, 19,403.21 and 4,932.54

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Solution

The fourth proportional to 12,939.14, 19,403.21 and 4,932.54 is: 7,396.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939.14 : 19,403.21 = 4,932.54 : x
  2. Step 2: Convert to fraction form
    12,939.14/19,403.21 = 4,932.54/x
  3. Step 3: Cross multiply
    12,939.14x = 19,403.21 × 4,932.54
  4. Step 4: Simplify right side
    12,939.14x = 95,707,121.78
  5. Step 5: Solve for x
    x = 95,707,121.78/12,939.14
  6. Step 6: Final answer
    x = 7,396.71

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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.