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Finding the Fourth Proportional to 16,956.84, 23,403.18 and 9,881.90

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Solution

The fourth proportional to 16,956.84, 23,403.18 and 9,881.90 is: 13,638.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,956.84 : 23,403.18 = 9,881.90 : x
  2. Step 2: Convert to fraction form
    16,956.84/23,403.18 = 9,881.90/x
  3. Step 3: Cross multiply
    16,956.84x = 23,403.18 × 9,881.90
  4. Step 4: Simplify right side
    16,956.84x = 231,267,836.66
  5. Step 5: Solve for x
    x = 231,267,836.66/16,956.84
  6. Step 6: Final answer
    x = 13,638.61

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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.