Home / 11,829.78-17,741.01-3,930.61

Finding the Fourth Proportional to 11,829.78, 17,741.01 and 3,930.61

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Solution

The fourth proportional to 11,829.78, 17,741.01 and 3,930.61 is: 5,894.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,829.78 : 17,741.01 = 3,930.61 : x
  2. Step 2: Convert to fraction form
    11,829.78/17,741.01 = 3,930.61/x
  3. Step 3: Cross multiply
    11,829.78x = 17,741.01 × 3,930.61
  4. Step 4: Simplify right side
    11,829.78x = 69,732,991.32
  5. Step 5: Solve for x
    x = 69,732,991.32/11,829.78
  6. Step 6: Final answer
    x = 5,894.70

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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.