Home / 18,974.09-26,187.67-11,317.86

Finding the Fourth Proportional to 18,974.09, 26,187.67 and 11,317.86

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Solution

The fourth proportional to 18,974.09, 26,187.67 and 11,317.86 is: 15,620.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,974.09 : 26,187.67 = 11,317.86 : x
  2. Step 2: Convert to fraction form
    18,974.09/26,187.67 = 11,317.86/x
  3. Step 3: Cross multiply
    18,974.09x = 26,187.67 × 11,317.86
  4. Step 4: Simplify right side
    18,974.09x = 296,388,365.57
  5. Step 5: Solve for x
    x = 296,388,365.57/18,974.09
  6. Step 6: Final answer
    x = 15,620.69

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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.