Home / 12,481.83-18,730.79-8,039.03

Finding the Fourth Proportional to 12,481.83, 18,730.79 and 8,039.03

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Solution

The fourth proportional to 12,481.83, 18,730.79 and 8,039.03 is: 12,063.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.83 : 18,730.79 = 8,039.03 : x
  2. Step 2: Convert to fraction form
    12,481.83/18,730.79 = 8,039.03/x
  3. Step 3: Cross multiply
    12,481.83x = 18,730.79 × 8,039.03
  4. Step 4: Simplify right side
    12,481.83x = 150,577,382.73
  5. Step 5: Solve for x
    x = 150,577,382.73/12,481.83
  6. Step 6: Final answer
    x = 12,063.73

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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.