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Finding the Fourth Proportional to 8,001.20, 11,998.20 and 3,069.20

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Solution

The fourth proportional to 8,001.20, 11,998.20 and 3,069.20 is: 4,602.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,001.20 : 11,998.20 = 3,069.20 : x
  2. Step 2: Convert to fraction form
    8,001.20/11,998.20 = 3,069.20/x
  3. Step 3: Cross multiply
    8,001.20x = 11,998.20 × 3,069.20
  4. Step 4: Simplify right side
    8,001.20x = 36,824,875.44
  5. Step 5: Solve for x
    x = 36,824,875.44/8,001.20
  6. Step 6: Final answer
    x = 4,602.42

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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.