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Finding the Fourth Proportional to 18,681.78, 28,026 and 6,202.56

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Solution

The fourth proportional to 18,681.78, 28,026 and 6,202.56 is: 9,304.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.78 : 28,026 = 6,202.56 : x
  2. Step 2: Convert to fraction form
    18,681.78/28,026 = 6,202.56/x
  3. Step 3: Cross multiply
    18,681.78x = 28,026 × 6,202.56
  4. Step 4: Simplify right side
    18,681.78x = 173,832,946.56
  5. Step 5: Solve for x
    x = 173,832,946.56/18,681.78
  6. Step 6: Final answer
    x = 9,304.95

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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.