Home / 8,204.26-12,308.40-3,820.80

Finding the Fourth Proportional to 8,204.26, 12,308.40 and 3,820.80

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Solution

The fourth proportional to 8,204.26, 12,308.40 and 3,820.80 is: 5,732.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,204.26 : 12,308.40 = 3,820.80 : x
  2. Step 2: Convert to fraction form
    8,204.26/12,308.40 = 3,820.80/x
  3. Step 3: Cross multiply
    8,204.26x = 12,308.40 × 3,820.80
  4. Step 4: Simplify right side
    8,204.26x = 47,027,934.72
  5. Step 5: Solve for x
    x = 47,027,934.72/8,204.26
  6. Step 6: Final answer
    x = 5,732.14

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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.