Home / 18,785.28-25,923.73-10,171.55

Finding the Fourth Proportional to 18,785.28, 25,923.73 and 10,171.55

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Solution

The fourth proportional to 18,785.28, 25,923.73 and 10,171.55 is: 14,036.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785.28 : 25,923.73 = 10,171.55 : x
  2. Step 2: Convert to fraction form
    18,785.28/25,923.73 = 10,171.55/x
  3. Step 3: Cross multiply
    18,785.28x = 25,923.73 × 10,171.55
  4. Step 4: Simplify right side
    18,785.28x = 263,684,515.88
  5. Step 5: Solve for x
    x = 263,684,515.88/18,785.28
  6. Step 6: Final answer
    x = 14,036.76

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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.