Home / 13,198.26-18,213.62-7,230.15

Finding the Fourth Proportional to 13,198.26, 18,213.62 and 7,230.15

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Solution

The fourth proportional to 13,198.26, 18,213.62 and 7,230.15 is: 9,977.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198.26 : 18,213.62 = 7,230.15 : x
  2. Step 2: Convert to fraction form
    13,198.26/18,213.62 = 7,230.15/x
  3. Step 3: Cross multiply
    13,198.26x = 18,213.62 × 7,230.15
  4. Step 4: Simplify right side
    13,198.26x = 131,687,168.49
  5. Step 5: Solve for x
    x = 131,687,168.49/13,198.26
  6. Step 6: Final answer
    x = 9,977.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.