Home / 11,949.93-17,921.86-8,472.60

Finding the Fourth Proportional to 11,949.93, 17,921.86 and 8,472.60

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Solution

The fourth proportional to 11,949.93, 17,921.86 and 8,472.60 is: 12,706.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,949.93 : 17,921.86 = 8,472.60 : x
  2. Step 2: Convert to fraction form
    11,949.93/17,921.86 = 8,472.60/x
  3. Step 3: Cross multiply
    11,949.93x = 17,921.86 × 8,472.60
  4. Step 4: Simplify right side
    11,949.93x = 151,844,729.85
  5. Step 5: Solve for x
    x = 151,844,729.85/11,949.93
  6. Step 6: Final answer
    x = 12,706.75

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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.