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Finding the Fourth Proportional to 18,011, 27,046.38 and 11,129.24

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Solution

The fourth proportional to 18,011, 27,046.38 and 11,129.24 is: 16,712.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,011 : 27,046.38 = 11,129.24 : x
  2. Step 2: Convert to fraction form
    18,011/27,046.38 = 11,129.24/x
  3. Step 3: Cross multiply
    18,011x = 27,046.38 × 11,129.24
  4. Step 4: Simplify right side
    18,011x = 301,005,654.15
  5. Step 5: Solve for x
    x = 301,005,654.15/18,011
  6. Step 6: Final answer
    x = 16,712.32

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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.