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Finding the Fourth Proportional to 12,243.84, 18,361.20 and 4,845.84

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Solution

The fourth proportional to 12,243.84, 18,361.20 and 4,845.84 is: 7,266.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.84 : 18,361.20 = 4,845.84 : x
  2. Step 2: Convert to fraction form
    12,243.84/18,361.20 = 4,845.84/x
  3. Step 3: Cross multiply
    12,243.84x = 18,361.20 × 4,845.84
  4. Step 4: Simplify right side
    12,243.84x = 88,975,437.41
  5. Step 5: Solve for x
    x = 88,975,437.41/12,243.84
  6. Step 6: Final answer
    x = 7,266.96

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.