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Finding the Fourth Proportional to 8,361.22, 12,550.66 and 8,172.94

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Solution

The fourth proportional to 8,361.22, 12,550.66 and 8,172.94 is: 12,268.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361.22 : 12,550.66 = 8,172.94 : x
  2. Step 2: Convert to fraction form
    8,361.22/12,550.66 = 8,172.94/x
  3. Step 3: Cross multiply
    8,361.22x = 12,550.66 × 8,172.94
  4. Step 4: Simplify right side
    8,361.22x = 102,575,791.14
  5. Step 5: Solve for x
    x = 102,575,791.14/8,361.22
  6. Step 6: Final answer
    x = 12,268.04

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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.