Home / 18,661.06-25,716.48-11,934.97

Finding the Fourth Proportional to 18,661.06, 25,716.48 and 11,934.97

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Solution

The fourth proportional to 18,661.06, 25,716.48 and 11,934.97 is: 16,447.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,661.06 : 25,716.48 = 11,934.97 : x
  2. Step 2: Convert to fraction form
    18,661.06/25,716.48 = 11,934.97/x
  3. Step 3: Cross multiply
    18,661.06x = 25,716.48 × 11,934.97
  4. Step 4: Simplify right side
    18,661.06x = 306,925,417.31
  5. Step 5: Solve for x
    x = 306,925,417.31/18,661.06
  6. Step 6: Final answer
    x = 16,447.37

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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.