Home / 18,993.99-26,212.62-11,442.69

Finding the Fourth Proportional to 18,993.99, 26,212.62 and 11,442.69

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Solution

The fourth proportional to 18,993.99, 26,212.62 and 11,442.69 is: 15,791.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,993.99 : 26,212.62 = 11,442.69 : x
  2. Step 2: Convert to fraction form
    18,993.99/26,212.62 = 11,442.69/x
  3. Step 3: Cross multiply
    18,993.99x = 26,212.62 × 11,442.69
  4. Step 4: Simplify right side
    18,993.99x = 299,942,819.22
  5. Step 5: Solve for x
    x = 299,942,819.22/18,993.99
  6. Step 6: Final answer
    x = 15,791.46

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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.