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Finding the Fourth Proportional to 14,195.45, 19,589.37 and 7,907.69

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Solution

The fourth proportional to 14,195.45, 19,589.37 and 7,907.69 is: 10,912.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,195.45 : 19,589.37 = 7,907.69 : x
  2. Step 2: Convert to fraction form
    14,195.45/19,589.37 = 7,907.69/x
  3. Step 3: Cross multiply
    14,195.45x = 19,589.37 × 7,907.69
  4. Step 4: Simplify right side
    14,195.45x = 154,906,665.26
  5. Step 5: Solve for x
    x = 154,906,665.26/14,195.45
  6. Step 6: Final answer
    x = 10,912.42

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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.