Home / 12,115.16-18,172.68-3,350.04

Finding the Fourth Proportional to 12,115.16, 18,172.68 and 3,350.04

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Solution

The fourth proportional to 12,115.16, 18,172.68 and 3,350.04 is: 5,025.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.16 : 18,172.68 = 3,350.04 : x
  2. Step 2: Convert to fraction form
    12,115.16/18,172.68 = 3,350.04/x
  3. Step 3: Cross multiply
    12,115.16x = 18,172.68 × 3,350.04
  4. Step 4: Simplify right side
    12,115.16x = 60,879,204.91
  5. Step 5: Solve for x
    x = 60,879,204.91/12,115.16
  6. Step 6: Final answer
    x = 5,025.04

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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.