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Finding the Fourth Proportional to 18,647.36, 27,964 and 5,496

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Solution

The fourth proportional to 18,647.36, 27,964 and 5,496 is: 8,241.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647.36 : 27,964 = 5,496 : x
  2. Step 2: Convert to fraction form
    18,647.36/27,964 = 5,496/x
  3. Step 3: Cross multiply
    18,647.36x = 27,964 × 5,496
  4. Step 4: Simplify right side
    18,647.36x = 153,690,144
  5. Step 5: Solve for x
    x = 153,690,144/18,647.36
  6. Step 6: Final answer
    x = 8,241.93

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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.