Home / 18,958.86-26,161.99-11,403.79

Finding the Fourth Proportional to 18,958.86, 26,161.99 and 11,403.79

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Solution

The fourth proportional to 18,958.86, 26,161.99 and 11,403.79 is: 15,736.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,958.86 : 26,161.99 = 11,403.79 : x
  2. Step 2: Convert to fraction form
    18,958.86/26,161.99 = 11,403.79/x
  3. Step 3: Cross multiply
    18,958.86x = 26,161.99 × 11,403.79
  4. Step 4: Simplify right side
    18,958.86x = 298,345,746.03
  5. Step 5: Solve for x
    x = 298,345,746.03/18,958.86
  6. Step 6: Final answer
    x = 15,736.48

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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.