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Finding the Fourth Proportional to 18,679, 28,022.94 and 6,367

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Solution

The fourth proportional to 18,679, 28,022.94 and 6,367 is: 9,552.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,679 : 28,022.94 = 6,367 : x
  2. Step 2: Convert to fraction form
    18,679/28,022.94 = 6,367/x
  3. Step 3: Cross multiply
    18,679x = 28,022.94 × 6,367
  4. Step 4: Simplify right side
    18,679x = 178,422,058.98
  5. Step 5: Solve for x
    x = 178,422,058.98/18,679
  6. Step 6: Final answer
    x = 9,552.01

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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.