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Finding the Fourth Proportional to 8,516.74, 12,775.05 and 3,322.62

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Solution

The fourth proportional to 8,516.74, 12,775.05 and 3,322.62 is: 4,983.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516.74 : 12,775.05 = 3,322.62 : x
  2. Step 2: Convert to fraction form
    8,516.74/12,775.05 = 3,322.62/x
  3. Step 3: Cross multiply
    8,516.74x = 12,775.05 × 3,322.62
  4. Step 4: Simplify right side
    8,516.74x = 42,446,636.63
  5. Step 5: Solve for x
    x = 42,446,636.63/8,516.74
  6. Step 6: Final answer
    x = 4,983.91

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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.