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Finding the Fourth Proportional to 8,019.26, 12,028.62 and 2,825

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Solution

The fourth proportional to 8,019.26, 12,028.62 and 2,825 is: 4,237.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,019.26 : 12,028.62 = 2,825 : x
  2. Step 2: Convert to fraction form
    8,019.26/12,028.62 = 2,825/x
  3. Step 3: Cross multiply
    8,019.26x = 12,028.62 × 2,825
  4. Step 4: Simplify right side
    8,019.26x = 33,980,851.50
  5. Step 5: Solve for x
    x = 33,980,851.50/8,019.26
  6. Step 6: Final answer
    x = 4,237.40

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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.