Home / 11,829.71-17,740.92-3,930.54

Finding the Fourth Proportional to 11,829.71, 17,740.92 and 3,930.54

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Solution

The fourth proportional to 11,829.71, 17,740.92 and 3,930.54 is: 5,894.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,829.71 : 17,740.92 = 3,930.54 : x
  2. Step 2: Convert to fraction form
    11,829.71/17,740.92 = 3,930.54/x
  3. Step 3: Cross multiply
    11,829.71x = 17,740.92 × 3,930.54
  4. Step 4: Simplify right side
    11,829.71x = 69,731,443.70
  5. Step 5: Solve for x
    x = 69,731,443.70/11,829.71
  6. Step 6: Final answer
    x = 5,894.60

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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.