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Finding the Fourth Proportional to 17,928, 26,892 and 8,539.56

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Solution

The fourth proportional to 17,928, 26,892 and 8,539.56 is: 12,809.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,928 : 26,892 = 8,539.56 : x
  2. Step 2: Convert to fraction form
    17,928/26,892 = 8,539.56/x
  3. Step 3: Cross multiply
    17,928x = 26,892 × 8,539.56
  4. Step 4: Simplify right side
    17,928x = 229,645,847.52
  5. Step 5: Solve for x
    x = 229,645,847.52/17,928
  6. Step 6: Final answer
    x = 12,809.34

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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.