Home / 18,323.28-25,286.58-11,245.68

Finding the Fourth Proportional to 18,323.28, 25,286.58 and 11,245.68

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Solution

The fourth proportional to 18,323.28, 25,286.58 and 11,245.68 is: 15,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,323.28 : 25,286.58 = 11,245.68 : x
  2. Step 2: Convert to fraction form
    18,323.28/25,286.58 = 11,245.68/x
  3. Step 3: Cross multiply
    18,323.28x = 25,286.58 × 11,245.68
  4. Step 4: Simplify right side
    18,323.28x = 284,364,786.97
  5. Step 5: Solve for x
    x = 284,364,786.97/18,323.28
  6. Step 6: Final answer
    x = 15,519.32

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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.