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Finding the Fourth Proportional to 15,103.00, 20,843.77 and 9,137.96

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Solution

The fourth proportional to 15,103.00, 20,843.77 and 9,137.96 is: 12,611.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,103.00 : 20,843.77 = 9,137.96 : x
  2. Step 2: Convert to fraction form
    15,103.00/20,843.77 = 9,137.96/x
  3. Step 3: Cross multiply
    15,103.00x = 20,843.77 × 9,137.96
  4. Step 4: Simplify right side
    15,103.00x = 190,469,426.58
  5. Step 5: Solve for x
    x = 190,469,426.58/15,103.00
  6. Step 6: Final answer
    x = 12,611.37

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Why These Related Problems?

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