Home / 11,922.80-17,886.22-4,906.61

Finding the Fourth Proportional to 11,922.80, 17,886.22 and 4,906.61

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Solution

The fourth proportional to 11,922.80, 17,886.22 and 4,906.61 is: 7,360.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.80 : 17,886.22 = 4,906.61 : x
  2. Step 2: Convert to fraction form
    11,922.80/17,886.22 = 4,906.61/x
  3. Step 3: Cross multiply
    11,922.80x = 17,886.22 × 4,906.61
  4. Step 4: Simplify right side
    11,922.80x = 87,760,671.29
  5. Step 5: Solve for x
    x = 87,760,671.29/11,922.80
  6. Step 6: Final answer
    x = 7,360.75

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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.