Home / 18,891.18-26,072.75-11,722.38

Finding the Fourth Proportional to 18,891.18, 26,072.75 and 11,722.38

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Solution

The fourth proportional to 18,891.18, 26,072.75 and 11,722.38 is: 16,178.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.18 : 26,072.75 = 11,722.38 : x
  2. Step 2: Convert to fraction form
    18,891.18/26,072.75 = 11,722.38/x
  3. Step 3: Cross multiply
    18,891.18x = 26,072.75 × 11,722.38
  4. Step 4: Simplify right side
    18,891.18x = 305,634,614.68
  5. Step 5: Solve for x
    x = 305,634,614.68/18,891.18
  6. Step 6: Final answer
    x = 16,178.69

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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.