Home / 15,013.25-20,716.49-8,297.97

Finding the Fourth Proportional to 15,013.25, 20,716.49 and 8,297.97

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Solution

The fourth proportional to 15,013.25, 20,716.49 and 8,297.97 is: 11,450.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,013.25 : 20,716.49 = 8,297.97 : x
  2. Step 2: Convert to fraction form
    15,013.25/20,716.49 = 8,297.97/x
  3. Step 3: Cross multiply
    15,013.25x = 20,716.49 × 8,297.97
  4. Step 4: Simplify right side
    15,013.25x = 171,904,833.27
  5. Step 5: Solve for x
    x = 171,904,833.27/15,013.25
  6. Step 6: Final answer
    x = 11,450.21

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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.