Home / 11,982.37-17,947.39-9,878.75

Finding the Fourth Proportional to 11,982.37, 17,947.39 and 9,878.75

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Solution

The fourth proportional to 11,982.37, 17,947.39 and 9,878.75 is: 14,796.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.37 : 17,947.39 = 9,878.75 : x
  2. Step 2: Convert to fraction form
    11,982.37/17,947.39 = 9,878.75/x
  3. Step 3: Cross multiply
    11,982.37x = 17,947.39 × 9,878.75
  4. Step 4: Simplify right side
    11,982.37x = 177,297,778.96
  5. Step 5: Solve for x
    x = 177,297,778.96/11,982.37
  6. Step 6: Final answer
    x = 14,796.55

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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.