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Finding the Fourth Proportional to 12,526.44, 17,286.46 and 7,221.22

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Solution

The fourth proportional to 12,526.44, 17,286.46 and 7,221.22 is: 9,965.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,526.44 : 17,286.46 = 7,221.22 : x
  2. Step 2: Convert to fraction form
    12,526.44/17,286.46 = 7,221.22/x
  3. Step 3: Cross multiply
    12,526.44x = 17,286.46 × 7,221.22
  4. Step 4: Simplify right side
    12,526.44x = 124,829,330.68
  5. Step 5: Solve for x
    x = 124,829,330.68/12,526.44
  6. Step 6: Final answer
    x = 9,965.27

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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.