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Finding the Fourth Proportional to 17,811, 26,720.82 and 5,499

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Solution

The fourth proportional to 17,811, 26,720.82 and 5,499 is: 8,249.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,811 : 26,720.82 = 5,499 : x
  2. Step 2: Convert to fraction form
    17,811/26,720.82 = 5,499/x
  3. Step 3: Cross multiply
    17,811x = 26,720.82 × 5,499
  4. Step 4: Simplify right side
    17,811x = 146,937,789.18
  5. Step 5: Solve for x
    x = 146,937,789.18/17,811
  6. Step 6: Final answer
    x = 8,249.83

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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.