Home / 18,121.41-25,007.80-10,950.33

Finding the Fourth Proportional to 18,121.41, 25,007.80 and 10,950.33

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Solution

The fourth proportional to 18,121.41, 25,007.80 and 10,950.33 is: 15,111.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.41 : 25,007.80 = 10,950.33 : x
  2. Step 2: Convert to fraction form
    18,121.41/25,007.80 = 10,950.33/x
  3. Step 3: Cross multiply
    18,121.41x = 25,007.80 × 10,950.33
  4. Step 4: Simplify right side
    18,121.41x = 273,843,662.57
  5. Step 5: Solve for x
    x = 273,843,662.57/18,121.41
  6. Step 6: Final answer
    x = 15,111.61

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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.