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Finding the Fourth Proportional to 11,866.33, 17,760.90 and 8,745.10

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Solution

The fourth proportional to 11,866.33, 17,760.90 and 8,745.10 is: 13,089.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,866.33 : 17,760.90 = 8,745.10 : x
  2. Step 2: Convert to fraction form
    11,866.33/17,760.90 = 8,745.10/x
  3. Step 3: Cross multiply
    11,866.33x = 17,760.90 × 8,745.10
  4. Step 4: Simplify right side
    11,866.33x = 155,320,846.59
  5. Step 5: Solve for x
    x = 155,320,846.59/11,866.33
  6. Step 6: Final answer
    x = 13,089.21

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Why These Related Problems?

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