Home / 18,786.79-25,923.98-11,231.62

Finding the Fourth Proportional to 18,786.79, 25,923.98 and 11,231.62

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Solution

The fourth proportional to 18,786.79, 25,923.98 and 11,231.62 is: 15,498.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.79 : 25,923.98 = 11,231.62 : x
  2. Step 2: Convert to fraction form
    18,786.79/25,923.98 = 11,231.62/x
  3. Step 3: Cross multiply
    18,786.79x = 25,923.98 × 11,231.62
  4. Step 4: Simplify right side
    18,786.79x = 291,168,236.09
  5. Step 5: Solve for x
    x = 291,168,236.09/18,786.79
  6. Step 6: Final answer
    x = 15,498.56

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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.