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Finding the Fourth Proportional to 15,899.93, 21,942.57 and 8,826.36

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Solution

The fourth proportional to 15,899.93, 21,942.57 and 8,826.36 is: 12,180.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,899.93 : 21,942.57 = 8,826.36 : x
  2. Step 2: Convert to fraction form
    15,899.93/21,942.57 = 8,826.36/x
  3. Step 3: Cross multiply
    15,899.93x = 21,942.57 × 8,826.36
  4. Step 4: Simplify right side
    15,899.93x = 193,673,022.15
  5. Step 5: Solve for x
    x = 193,673,022.15/15,899.93
  6. Step 6: Final answer
    x = 12,180.75

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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.