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Finding the Fourth Proportional to 8,361.45, 12,542.18 and 3,741.21

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Solution

The fourth proportional to 8,361.45, 12,542.18 and 3,741.21 is: 5,611.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361.45 : 12,542.18 = 3,741.21 : x
  2. Step 2: Convert to fraction form
    8,361.45/12,542.18 = 3,741.21/x
  3. Step 3: Cross multiply
    8,361.45x = 12,542.18 × 3,741.21
  4. Step 4: Simplify right side
    8,361.45x = 46,922,910.53
  5. Step 5: Solve for x
    x = 46,922,910.53/8,361.45
  6. Step 6: Final answer
    x = 5,611.82

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Similar ratio
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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.