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Finding the Fourth Proportional to 12,043.47, 18,067.23 and 4,145.67

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Solution

The fourth proportional to 12,043.47, 18,067.23 and 4,145.67 is: 6,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,043.47 : 18,067.23 = 4,145.67 : x
  2. Step 2: Convert to fraction form
    12,043.47/18,067.23 = 4,145.67/x
  3. Step 3: Cross multiply
    12,043.47x = 18,067.23 × 4,145.67
  4. Step 4: Simplify right side
    12,043.47x = 74,900,773.39
  5. Step 5: Solve for x
    x = 74,900,773.39/12,043.47
  6. Step 6: Final answer
    x = 6,219.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.