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Finding the Fourth Proportional to 18,677.82, 25,765.38 and 11,956.22

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Solution

The fourth proportional to 18,677.82, 25,765.38 and 11,956.22 is: 16,493.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.82 : 25,765.38 = 11,956.22 : x
  2. Step 2: Convert to fraction form
    18,677.82/25,765.38 = 11,956.22/x
  3. Step 3: Cross multiply
    18,677.82x = 25,765.38 × 11,956.22
  4. Step 4: Simplify right side
    18,677.82x = 308,056,422.84
  5. Step 5: Solve for x
    x = 308,056,422.84/18,677.82
  6. Step 6: Final answer
    x = 16,493.17

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