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Finding the Fourth Proportional to 8,003.88, 12,006.09 and 2,160.54

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Solution

The fourth proportional to 8,003.88, 12,006.09 and 2,160.54 is: 3,240.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,003.88 : 12,006.09 = 2,160.54 : x
  2. Step 2: Convert to fraction form
    8,003.88/12,006.09 = 2,160.54/x
  3. Step 3: Cross multiply
    8,003.88x = 12,006.09 × 2,160.54
  4. Step 4: Simplify right side
    8,003.88x = 25,939,637.69
  5. Step 5: Solve for x
    x = 25,939,637.69/8,003.88
  6. Step 6: Final answer
    x = 3,240.88

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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.