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Finding the Fourth Proportional to 19,808, 27,335.04 and 11,850.56

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Solution

The fourth proportional to 19,808, 27,335.04 and 11,850.56 is: 16,353.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,808 : 27,335.04 = 11,850.56 : x
  2. Step 2: Convert to fraction form
    19,808/27,335.04 = 11,850.56/x
  3. Step 3: Cross multiply
    19,808x = 27,335.04 × 11,850.56
  4. Step 4: Simplify right side
    19,808x = 323,935,531.62
  5. Step 5: Solve for x
    x = 323,935,531.62/19,808
  6. Step 6: Final answer
    x = 16,353.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.