Home / 11,877.60-17,815.76-4,481.88

Finding the Fourth Proportional to 11,877.60, 17,815.76 and 4,481.88

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Solution

The fourth proportional to 11,877.60, 17,815.76 and 4,481.88 is: 6,722.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,877.60 : 17,815.76 = 4,481.88 : x
  2. Step 2: Convert to fraction form
    11,877.60/17,815.76 = 4,481.88/x
  3. Step 3: Cross multiply
    11,877.60x = 17,815.76 × 4,481.88
  4. Step 4: Simplify right side
    11,877.60x = 79,848,076.02
  5. Step 5: Solve for x
    x = 79,848,076.02/11,877.60
  6. Step 6: Final answer
    x = 6,722.58

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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.