Home / 9,145.73-13,721.18-2,571.97

Finding the Fourth Proportional to 9,145.73, 13,721.18 and 2,571.97

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Solution

The fourth proportional to 9,145.73, 13,721.18 and 2,571.97 is: 3,858.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.73 : 13,721.18 = 2,571.97 : x
  2. Step 2: Convert to fraction form
    9,145.73/13,721.18 = 2,571.97/x
  3. Step 3: Cross multiply
    9,145.73x = 13,721.18 × 2,571.97
  4. Step 4: Simplify right side
    9,145.73x = 35,290,463.32
  5. Step 5: Solve for x
    x = 35,290,463.32/9,145.73
  6. Step 6: Final answer
    x = 3,858.68

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Why These Related Problems?

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