Home / 8,380.86-12,566.97-3,449.58

Finding the Fourth Proportional to 8,380.86, 12,566.97 and 3,449.58

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Solution

The fourth proportional to 8,380.86, 12,566.97 and 3,449.58 is: 5,172.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.86 : 12,566.97 = 3,449.58 : x
  2. Step 2: Convert to fraction form
    8,380.86/12,566.97 = 3,449.58/x
  3. Step 3: Cross multiply
    8,380.86x = 12,566.97 × 3,449.58
  4. Step 4: Simplify right side
    8,380.86x = 43,350,768.37
  5. Step 5: Solve for x
    x = 43,350,768.37/8,380.86
  6. Step 6: Final answer
    x = 5,172.59

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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.