Home / 8,218.55-12,336.60-3,540.88

Finding the Fourth Proportional to 8,218.55, 12,336.60 and 3,540.88

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Solution

The fourth proportional to 8,218.55, 12,336.60 and 3,540.88 is: 5,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.55 : 12,336.60 = 3,540.88 : x
  2. Step 2: Convert to fraction form
    8,218.55/12,336.60 = 3,540.88/x
  3. Step 3: Cross multiply
    8,218.55x = 12,336.60 × 3,540.88
  4. Step 4: Simplify right side
    8,218.55x = 43,682,448.91
  5. Step 5: Solve for x
    x = 43,682,448.91/8,218.55
  6. Step 6: Final answer
    x = 5,315.10

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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.