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Finding the Fourth Proportional to 13,067.93, 18,033.72 and 7,402.67

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Solution

The fourth proportional to 13,067.93, 18,033.72 and 7,402.67 is: 10,215.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,067.93 : 18,033.72 = 7,402.67 : x
  2. Step 2: Convert to fraction form
    13,067.93/18,033.72 = 7,402.67/x
  3. Step 3: Cross multiply
    13,067.93x = 18,033.72 × 7,402.67
  4. Step 4: Simplify right side
    13,067.93x = 133,497,627.73
  5. Step 5: Solve for x
    x = 133,497,627.73/13,067.93
  6. Step 6: Final answer
    x = 10,215.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.