Home / 11,829.11-17,739.30-3,930.18

Finding the Fourth Proportional to 11,829.11, 17,739.30 and 3,930.18

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Solution

The fourth proportional to 11,829.11, 17,739.30 and 3,930.18 is: 5,893.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,829.11 : 17,739.30 = 3,930.18 : x
  2. Step 2: Convert to fraction form
    11,829.11/17,739.30 = 3,930.18/x
  3. Step 3: Cross multiply
    11,829.11x = 17,739.30 × 3,930.18
  4. Step 4: Simplify right side
    11,829.11x = 69,718,642.07
  5. Step 5: Solve for x
    x = 69,718,642.07/11,829.11
  6. Step 6: Final answer
    x = 5,893.82

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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.