Home / 8,080.26-12,121-4,185.38

Finding the Fourth Proportional to 8,080.26, 12,121 and 4,185.38

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Solution

The fourth proportional to 8,080.26, 12,121 and 4,185.38 is: 6,278.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.26 : 12,121 = 4,185.38 : x
  2. Step 2: Convert to fraction form
    8,080.26/12,121 = 4,185.38/x
  3. Step 3: Cross multiply
    8,080.26x = 12,121 × 4,185.38
  4. Step 4: Simplify right side
    8,080.26x = 50,730,990.98
  5. Step 5: Solve for x
    x = 50,730,990.98/8,080.26
  6. Step 6: Final answer
    x = 6,278.39

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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.