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Finding the Fourth Proportional to 8,922.21, 13,444.56 and 7,396.44

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Solution

The fourth proportional to 8,922.21, 13,444.56 and 7,396.44 is: 11,145.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.21 : 13,444.56 = 7,396.44 : x
  2. Step 2: Convert to fraction form
    8,922.21/13,444.56 = 7,396.44/x
  3. Step 3: Cross multiply
    8,922.21x = 13,444.56 × 7,396.44
  4. Step 4: Simplify right side
    8,922.21x = 99,441,881.37
  5. Step 5: Solve for x
    x = 99,441,881.37/8,922.21
  6. Step 6: Final answer
    x = 11,145.43

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.