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Finding the Fourth Proportional to 8,737.74, 13,100.42 and 2,812.79

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Solution

The fourth proportional to 8,737.74, 13,100.42 and 2,812.79 is: 4,217.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.74 : 13,100.42 = 2,812.79 : x
  2. Step 2: Convert to fraction form
    8,737.74/13,100.42 = 2,812.79/x
  3. Step 3: Cross multiply
    8,737.74x = 13,100.42 × 2,812.79
  4. Step 4: Simplify right side
    8,737.74x = 36,848,730.37
  5. Step 5: Solve for x
    x = 36,848,730.37/8,737.74
  6. Step 6: Final answer
    x = 4,217.19

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Why These Related Problems?

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