Home / 11,788.37-17,671.62-3,991.73

Finding the Fourth Proportional to 11,788.37, 17,671.62 and 3,991.73

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Solution

The fourth proportional to 11,788.37, 17,671.62 and 3,991.73 is: 5,983.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,788.37 : 17,671.62 = 3,991.73 : x
  2. Step 2: Convert to fraction form
    11,788.37/17,671.62 = 3,991.73/x
  3. Step 3: Cross multiply
    11,788.37x = 17,671.62 × 3,991.73
  4. Step 4: Simplify right side
    11,788.37x = 70,540,335.70
  5. Step 5: Solve for x
    x = 70,540,335.70/11,788.37
  6. Step 6: Final answer
    x = 5,983.89

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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.