Home / 12,319.27-18,481.82-3,999.27

Finding the Fourth Proportional to 12,319.27, 18,481.82 and 3,999.27

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Solution

The fourth proportional to 12,319.27, 18,481.82 and 3,999.27 is: 5,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319.27 : 18,481.82 = 3,999.27 : x
  2. Step 2: Convert to fraction form
    12,319.27/18,481.82 = 3,999.27/x
  3. Step 3: Cross multiply
    12,319.27x = 18,481.82 × 3,999.27
  4. Step 4: Simplify right side
    12,319.27x = 73,913,788.27
  5. Step 5: Solve for x
    x = 73,913,788.27/12,319.27
  6. Step 6: Final answer
    x = 5,999.85

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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.