Home / 7,815.97-11,724.03-3,072.61

Finding the Fourth Proportional to 7,815.97, 11,724.03 and 3,072.61

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Solution

The fourth proportional to 7,815.97, 11,724.03 and 3,072.61 is: 4,608.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.97 : 11,724.03 = 3,072.61 : x
  2. Step 2: Convert to fraction form
    7,815.97/11,724.03 = 3,072.61/x
  3. Step 3: Cross multiply
    7,815.97x = 11,724.03 × 3,072.61
  4. Step 4: Simplify right side
    7,815.97x = 36,023,371.82
  5. Step 5: Solve for x
    x = 36,023,371.82/7,815.97
  6. Step 6: Final answer
    x = 4,608.94

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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.