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Finding the Fourth Proportional to 8,028.04, 12,039 and 3,218.05

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Solution

The fourth proportional to 8,028.04, 12,039 and 3,218.05 is: 4,825.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,028.04 : 12,039 = 3,218.05 : x
  2. Step 2: Convert to fraction form
    8,028.04/12,039 = 3,218.05/x
  3. Step 3: Cross multiply
    8,028.04x = 12,039 × 3,218.05
  4. Step 4: Simplify right side
    8,028.04x = 38,742,103.95
  5. Step 5: Solve for x
    x = 38,742,103.95/8,028.04
  6. Step 6: Final answer
    x = 4,825.85

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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.