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Finding the Fourth Proportional to 12,376.41, 18,564.61 and 3,611.32

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Solution

The fourth proportional to 12,376.41, 18,564.61 and 3,611.32 is: 5,416.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.41 : 18,564.61 = 3,611.32 : x
  2. Step 2: Convert to fraction form
    12,376.41/18,564.61 = 3,611.32/x
  3. Step 3: Cross multiply
    12,376.41x = 18,564.61 × 3,611.32
  4. Step 4: Simplify right side
    12,376.41x = 67,042,747.39
  5. Step 5: Solve for x
    x = 67,042,747.39/12,376.41
  6. Step 6: Final answer
    x = 5,416.98

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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.