Home / 15,195.12-20,922.48-12,951.96

Finding the Fourth Proportional to 15,195.12, 20,922.48 and 12,951.96

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Solution

The fourth proportional to 15,195.12, 20,922.48 and 12,951.96 is: 17,833.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,195.12 : 20,922.48 = 12,951.96 : x
  2. Step 2: Convert to fraction form
    15,195.12/20,922.48 = 12,951.96/x
  3. Step 3: Cross multiply
    15,195.12x = 20,922.48 × 12,951.96
  4. Step 4: Simplify right side
    15,195.12x = 270,987,124.06
  5. Step 5: Solve for x
    x = 270,987,124.06/15,195.12
  6. Step 6: Final answer
    x = 17,833.83

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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.