Home / 17,949.97-24,778.62-12,779.18

Finding the Fourth Proportional to 17,949.97, 24,778.62 and 12,779.18

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Solution

The fourth proportional to 17,949.97, 24,778.62 and 12,779.18 is: 17,640.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,949.97 : 24,778.62 = 12,779.18 : x
  2. Step 2: Convert to fraction form
    17,949.97/24,778.62 = 12,779.18/x
  3. Step 3: Cross multiply
    17,949.97x = 24,778.62 × 12,779.18
  4. Step 4: Simplify right side
    17,949.97x = 316,650,257.34
  5. Step 5: Solve for x
    x = 316,650,257.34/17,949.97
  6. Step 6: Final answer
    x = 17,640.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.