Home / 8,170.05-12,247.66-2,972.25

Finding the Fourth Proportional to 8,170.05, 12,247.66 and 2,972.25

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Solution

The fourth proportional to 8,170.05, 12,247.66 and 2,972.25 is: 4,455.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.05 : 12,247.66 = 2,972.25 : x
  2. Step 2: Convert to fraction form
    8,170.05/12,247.66 = 2,972.25/x
  3. Step 3: Cross multiply
    8,170.05x = 12,247.66 × 2,972.25
  4. Step 4: Simplify right side
    8,170.05x = 36,403,107.44
  5. Step 5: Solve for x
    x = 36,403,107.44/8,170.05
  6. Step 6: Final answer
    x = 4,455.68

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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.