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Finding the Fourth Proportional to 11,336, 16,990.56 and 8,553.44

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Solution

The fourth proportional to 11,336, 16,990.56 and 8,553.44 is: 12,820.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,336 : 16,990.56 = 8,553.44 : x
  2. Step 2: Convert to fraction form
    11,336/16,990.56 = 8,553.44/x
  3. Step 3: Cross multiply
    11,336x = 16,990.56 × 8,553.44
  4. Step 4: Simplify right side
    11,336x = 145,327,735.53
  5. Step 5: Solve for x
    x = 145,327,735.53/11,336
  6. Step 6: Final answer
    x = 12,820.02

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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.