Home / 18,785.78-25,924.41-10,287.97

Finding the Fourth Proportional to 18,785.78, 25,924.41 and 10,287.97

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Solution

The fourth proportional to 18,785.78, 25,924.41 and 10,287.97 is: 14,197.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785.78 : 25,924.41 = 10,287.97 : x
  2. Step 2: Convert to fraction form
    18,785.78/25,924.41 = 10,287.97/x
  3. Step 3: Cross multiply
    18,785.78x = 25,924.41 × 10,287.97
  4. Step 4: Simplify right side
    18,785.78x = 266,709,552.35
  5. Step 5: Solve for x
    x = 266,709,552.35/18,785.78
  6. Step 6: Final answer
    x = 14,197.42

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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.