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Finding the Fourth Proportional to 8,245.62, 12,365.82 and 4,347.90

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Solution

The fourth proportional to 8,245.62, 12,365.82 and 4,347.90 is: 6,520.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.62 : 12,365.82 = 4,347.90 : x
  2. Step 2: Convert to fraction form
    8,245.62/12,365.82 = 4,347.90/x
  3. Step 3: Cross multiply
    8,245.62x = 12,365.82 × 4,347.90
  4. Step 4: Simplify right side
    8,245.62x = 53,765,348.78
  5. Step 5: Solve for x
    x = 53,765,348.78/8,245.62
  6. Step 6: Final answer
    x = 6,520.47

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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.