Home / 11,281.96-16,922.43-2,961.78

Finding the Fourth Proportional to 11,281.96, 16,922.43 and 2,961.78

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Solution

The fourth proportional to 11,281.96, 16,922.43 and 2,961.78 is: 4,442.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,281.96 : 16,922.43 = 2,961.78 : x
  2. Step 2: Convert to fraction form
    11,281.96/16,922.43 = 2,961.78/x
  3. Step 3: Cross multiply
    11,281.96x = 16,922.43 × 2,961.78
  4. Step 4: Simplify right side
    11,281.96x = 50,120,514.73
  5. Step 5: Solve for x
    x = 50,120,514.73/11,281.96
  6. Step 6: Final answer
    x = 4,442.54

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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.