Home / 13,481.62-20,231.54-4,716.61

Finding the Fourth Proportional to 13,481.62, 20,231.54 and 4,716.61

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Solution

The fourth proportional to 13,481.62, 20,231.54 and 4,716.61 is: 7,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.62 : 20,231.54 = 4,716.61 : x
  2. Step 2: Convert to fraction form
    13,481.62/20,231.54 = 4,716.61/x
  3. Step 3: Cross multiply
    13,481.62x = 20,231.54 × 4,716.61
  4. Step 4: Simplify right side
    13,481.62x = 95,424,159.14
  5. Step 5: Solve for x
    x = 95,424,159.14/13,481.62
  6. Step 6: Final answer
    x = 7,078.10

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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.