Home / 15,747.73-21,731.92-8,674.13

Finding the Fourth Proportional to 15,747.73, 21,731.92 and 8,674.13

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Solution

The fourth proportional to 15,747.73, 21,731.92 and 8,674.13 is: 11,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,747.73 : 21,731.92 = 8,674.13 : x
  2. Step 2: Convert to fraction form
    15,747.73/21,731.92 = 8,674.13/x
  3. Step 3: Cross multiply
    15,747.73x = 21,731.92 × 8,674.13
  4. Step 4: Simplify right side
    15,747.73x = 188,505,531.87
  5. Step 5: Solve for x
    x = 188,505,531.87/15,747.73
  6. Step 6: Final answer
    x = 11,970.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.