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Finding the Fourth Proportional to 8,711.66, 13,063.16 and 2,866.26

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Solution

The fourth proportional to 8,711.66, 13,063.16 and 2,866.26 is: 4,297.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.66 : 13,063.16 = 2,866.26 : x
  2. Step 2: Convert to fraction form
    8,711.66/13,063.16 = 2,866.26/x
  3. Step 3: Cross multiply
    8,711.66x = 13,063.16 × 2,866.26
  4. Step 4: Simplify right side
    8,711.66x = 37,442,412.98
  5. Step 5: Solve for x
    x = 37,442,412.98/8,711.66
  6. Step 6: Final answer
    x = 4,297.97

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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.