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Finding the Fourth Proportional to 15,850.28, 23,779.91 and 7,943.27

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Solution

The fourth proportional to 15,850.28, 23,779.91 and 7,943.27 is: 11,917.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,850.28 : 23,779.91 = 7,943.27 : x
  2. Step 2: Convert to fraction form
    15,850.28/23,779.91 = 7,943.27/x
  3. Step 3: Cross multiply
    15,850.28x = 23,779.91 × 7,943.27
  4. Step 4: Simplify right side
    15,850.28x = 188,890,146.66
  5. Step 5: Solve for x
    x = 188,890,146.66/15,850.28
  6. Step 6: Final answer
    x = 11,917.15

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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.