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Finding the Fourth Proportional to 16,860.57, 25,278.36 and 8,087.13

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Solution

The fourth proportional to 16,860.57, 25,278.36 and 8,087.13 is: 12,124.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,860.57 : 25,278.36 = 8,087.13 : x
  2. Step 2: Convert to fraction form
    16,860.57/25,278.36 = 8,087.13/x
  3. Step 3: Cross multiply
    16,860.57x = 25,278.36 × 8,087.13
  4. Step 4: Simplify right side
    16,860.57x = 204,429,383.51
  5. Step 5: Solve for x
    x = 204,429,383.51/16,860.57
  6. Step 6: Final answer
    x = 12,124.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.