Home / 18,956.28-26,163.09-11,403.63

Finding the Fourth Proportional to 18,956.28, 26,163.09 and 11,403.63

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Solution

The fourth proportional to 18,956.28, 26,163.09 and 11,403.63 is: 15,739.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,956.28 : 26,163.09 = 11,403.63 : x
  2. Step 2: Convert to fraction form
    18,956.28/26,163.09 = 11,403.63/x
  3. Step 3: Cross multiply
    18,956.28x = 26,163.09 × 11,403.63
  4. Step 4: Simplify right side
    18,956.28x = 298,354,198.02
  5. Step 5: Solve for x
    x = 298,354,198.02/18,956.28
  6. Step 6: Final answer
    x = 15,739.07

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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.