Home / 15,412.36-23,121.12-5,414.52

Finding the Fourth Proportional to 15,412.36, 23,121.12 and 5,414.52

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Solution

The fourth proportional to 15,412.36, 23,121.12 and 5,414.52 is: 8,122.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.36 : 23,121.12 = 5,414.52 : x
  2. Step 2: Convert to fraction form
    15,412.36/23,121.12 = 5,414.52/x
  3. Step 3: Cross multiply
    15,412.36x = 23,121.12 × 5,414.52
  4. Step 4: Simplify right side
    15,412.36x = 125,189,766.66
  5. Step 5: Solve for x
    x = 125,189,766.66/15,412.36
  6. Step 6: Final answer
    x = 8,122.69

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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.