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Finding the Fourth Proportional to 8,711.73, 13,069.62 and 2,868.39

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Solution

The fourth proportional to 8,711.73, 13,069.62 and 2,868.39 is: 4,303.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.73 : 13,069.62 = 2,868.39 : x
  2. Step 2: Convert to fraction form
    8,711.73/13,069.62 = 2,868.39/x
  3. Step 3: Cross multiply
    8,711.73x = 13,069.62 × 2,868.39
  4. Step 4: Simplify right side
    8,711.73x = 37,488,767.31
  5. Step 5: Solve for x
    x = 37,488,767.31/8,711.73
  6. Step 6: Final answer
    x = 4,303.25

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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.