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Finding the Fourth Proportional to 12,222.25, 16,866.72 and 6,633.25

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Solution

The fourth proportional to 12,222.25, 16,866.72 and 6,633.25 is: 9,153.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.25 : 16,866.72 = 6,633.25 : x
  2. Step 2: Convert to fraction form
    12,222.25/16,866.72 = 6,633.25/x
  3. Step 3: Cross multiply
    12,222.25x = 16,866.72 × 6,633.25
  4. Step 4: Simplify right side
    12,222.25x = 111,881,170.44
  5. Step 5: Solve for x
    x = 111,881,170.44/12,222.25
  6. Step 6: Final answer
    x = 9,153.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.