Home / 18,500.32-27,745.50-8,629.96

Finding the Fourth Proportional to 18,500.32, 27,745.50 and 8,629.96

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Solution

The fourth proportional to 18,500.32, 27,745.50 and 8,629.96 is: 12,942.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,500.32 : 27,745.50 = 8,629.96 : x
  2. Step 2: Convert to fraction form
    18,500.32/27,745.50 = 8,629.96/x
  3. Step 3: Cross multiply
    18,500.32x = 27,745.50 × 8,629.96
  4. Step 4: Simplify right side
    18,500.32x = 239,442,555.18
  5. Step 5: Solve for x
    x = 239,442,555.18/18,500.32
  6. Step 6: Final answer
    x = 12,942.62

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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.