Home / 13,974.45-20,961.69-5,654.54

Finding the Fourth Proportional to 13,974.45, 20,961.69 and 5,654.54

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Solution

The fourth proportional to 13,974.45, 20,961.69 and 5,654.54 is: 8,481.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.45 : 20,961.69 = 5,654.54 : x
  2. Step 2: Convert to fraction form
    13,974.45/20,961.69 = 5,654.54/x
  3. Step 3: Cross multiply
    13,974.45x = 20,961.69 × 5,654.54
  4. Step 4: Simplify right side
    13,974.45x = 118,528,714.57
  5. Step 5: Solve for x
    x = 118,528,714.57/13,974.45
  6. Step 6: Final answer
    x = 8,481.82

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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.