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Finding the Fourth Proportional to 18,344.19, 27,515.33 and 5,196.61

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Solution

The fourth proportional to 18,344.19, 27,515.33 and 5,196.61 is: 7,794.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.19 : 27,515.33 = 5,196.61 : x
  2. Step 2: Convert to fraction form
    18,344.19/27,515.33 = 5,196.61/x
  3. Step 3: Cross multiply
    18,344.19x = 27,515.33 × 5,196.61
  4. Step 4: Simplify right side
    18,344.19x = 142,986,275.47
  5. Step 5: Solve for x
    x = 142,986,275.47/18,344.19
  6. Step 6: Final answer
    x = 7,794.64

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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.