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Finding the Fourth Proportional to 8,611.27, 12,915.20 and 2,369.67

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Solution

The fourth proportional to 8,611.27, 12,915.20 and 2,369.67 is: 3,554.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,611.27 : 12,915.20 = 2,369.67 : x
  2. Step 2: Convert to fraction form
    8,611.27/12,915.20 = 2,369.67/x
  3. Step 3: Cross multiply
    8,611.27x = 12,915.20 × 2,369.67
  4. Step 4: Simplify right side
    8,611.27x = 30,604,767.91
  5. Step 5: Solve for x
    x = 30,604,767.91/8,611.27
  6. Step 6: Final answer
    x = 3,554.04

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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.