Home / 11,922.05-17,872.43-4,521.48

Finding the Fourth Proportional to 11,922.05, 17,872.43 and 4,521.48

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Solution

The fourth proportional to 11,922.05, 17,872.43 and 4,521.48 is: 6,778.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.05 : 17,872.43 = 4,521.48 : x
  2. Step 2: Convert to fraction form
    11,922.05/17,872.43 = 4,521.48/x
  3. Step 3: Cross multiply
    11,922.05x = 17,872.43 × 4,521.48
  4. Step 4: Simplify right side
    11,922.05x = 80,809,834.80
  5. Step 5: Solve for x
    x = 80,809,834.80/11,922.05
  6. Step 6: Final answer
    x = 6,778.19

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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.