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Finding the Fourth Proportional to 8,006.87, 12,009.99 and 2,163.63

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Solution

The fourth proportional to 8,006.87, 12,009.99 and 2,163.63 is: 3,245.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,006.87 : 12,009.99 = 2,163.63 : x
  2. Step 2: Convert to fraction form
    8,006.87/12,009.99 = 2,163.63/x
  3. Step 3: Cross multiply
    8,006.87x = 12,009.99 × 2,163.63
  4. Step 4: Simplify right side
    8,006.87x = 25,985,174.66
  5. Step 5: Solve for x
    x = 25,985,174.66/8,006.87
  6. Step 6: Final answer
    x = 3,245.36

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1.5x scale

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.