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Finding the Fourth Proportional to 8,243.74, 12,354.09 and 3,850.30

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Solution

The fourth proportional to 8,243.74, 12,354.09 and 3,850.30 is: 5,770.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,243.74 : 12,354.09 = 3,850.30 : x
  2. Step 2: Convert to fraction form
    8,243.74/12,354.09 = 3,850.30/x
  3. Step 3: Cross multiply
    8,243.74x = 12,354.09 × 3,850.30
  4. Step 4: Simplify right side
    8,243.74x = 47,566,952.73
  5. Step 5: Solve for x
    x = 47,566,952.73/8,243.74
  6. Step 6: Final answer
    x = 5,770.07

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1.5x scale

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.