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Finding the Fourth Proportional to 8,817.72, 12,168.54 and 4,838.91

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Solution

The fourth proportional to 8,817.72, 12,168.54 and 4,838.91 is: 6,677.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,817.72 : 12,168.54 = 4,838.91 : x
  2. Step 2: Convert to fraction form
    8,817.72/12,168.54 = 4,838.91/x
  3. Step 3: Cross multiply
    8,817.72x = 12,168.54 × 4,838.91
  4. Step 4: Simplify right side
    8,817.72x = 58,882,469.89
  5. Step 5: Solve for x
    x = 58,882,469.89/8,817.72
  6. Step 6: Final answer
    x = 6,677.74

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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.