Home / 18,992.06-28,493.85-13,456.12

Finding the Fourth Proportional to 18,992.06, 28,493.85 and 13,456.12

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Solution

The fourth proportional to 18,992.06, 28,493.85 and 13,456.12 is: 20,188.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992.06 : 28,493.85 = 13,456.12 : x
  2. Step 2: Convert to fraction form
    18,992.06/28,493.85 = 13,456.12/x
  3. Step 3: Cross multiply
    18,992.06x = 28,493.85 × 13,456.12
  4. Step 4: Simplify right side
    18,992.06x = 383,416,664.86
  5. Step 5: Solve for x
    x = 383,416,664.86/18,992.06
  6. Step 6: Final answer
    x = 20,188.26

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1.5x scale

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.