Home / 7,825.16-11,733.11-3,147.38

Finding the Fourth Proportional to 7,825.16, 11,733.11 and 3,147.38

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Solution

The fourth proportional to 7,825.16, 11,733.11 and 3,147.38 is: 4,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.16 : 11,733.11 = 3,147.38 : x
  2. Step 2: Convert to fraction form
    7,825.16/11,733.11 = 3,147.38/x
  3. Step 3: Cross multiply
    7,825.16x = 11,733.11 × 3,147.38
  4. Step 4: Simplify right side
    7,825.16x = 36,928,481.35
  5. Step 5: Solve for x
    x = 36,928,481.35/7,825.16
  6. Step 6: Final answer
    x = 4,719.20

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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.