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Finding the Fourth Proportional to 8,241.96, 12,365.98 and 3,860.84

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Solution

The fourth proportional to 8,241.96, 12,365.98 and 3,860.84 is: 5,792.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.96 : 12,365.98 = 3,860.84 : x
  2. Step 2: Convert to fraction form
    8,241.96/12,365.98 = 3,860.84/x
  3. Step 3: Cross multiply
    8,241.96x = 12,365.98 × 3,860.84
  4. Step 4: Simplify right side
    8,241.96x = 47,743,070.22
  5. Step 5: Solve for x
    x = 47,743,070.22/8,241.96
  6. Step 6: Final answer
    x = 5,792.68

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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.