Home / 15,212.15-20,992.82-8,498.04

Finding the Fourth Proportional to 15,212.15, 20,992.82 and 8,498.04

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Solution

The fourth proportional to 15,212.15, 20,992.82 and 8,498.04 is: 11,727.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,212.15 : 20,992.82 = 8,498.04 : x
  2. Step 2: Convert to fraction form
    15,212.15/20,992.82 = 8,498.04/x
  3. Step 3: Cross multiply
    15,212.15x = 20,992.82 × 8,498.04
  4. Step 4: Simplify right side
    15,212.15x = 178,397,781.58
  5. Step 5: Solve for x
    x = 178,397,781.58/15,212.15
  6. Step 6: Final answer
    x = 11,727.32

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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.