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Finding the Fourth Proportional to 13,255.88, 19,884.08 and 10,611.11

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Solution

The fourth proportional to 13,255.88, 19,884.08 and 10,611.11 is: 15,916.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.88 : 19,884.08 = 10,611.11 : x
  2. Step 2: Convert to fraction form
    13,255.88/19,884.08 = 10,611.11/x
  3. Step 3: Cross multiply
    13,255.88x = 19,884.08 × 10,611.11
  4. Step 4: Simplify right side
    13,255.88x = 210,992,007.65
  5. Step 5: Solve for x
    x = 210,992,007.65/13,255.88
  6. Step 6: Final answer
    x = 15,916.87

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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.