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Finding the Fourth Proportional to 13,067.11, 18,033.02 and 7,479.91

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Solution

The fourth proportional to 13,067.11, 18,033.02 and 7,479.91 is: 10,322.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,067.11 : 18,033.02 = 7,479.91 : x
  2. Step 2: Convert to fraction form
    13,067.11/18,033.02 = 7,479.91/x
  3. Step 3: Cross multiply
    13,067.11x = 18,033.02 × 7,479.91
  4. Step 4: Simplify right side
    13,067.11x = 134,885,329.23
  5. Step 5: Solve for x
    x = 134,885,329.23/13,067.11
  6. Step 6: Final answer
    x = 10,322.51

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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.