Home / 18,923.38-28,367.42-6,434.87

Finding the Fourth Proportional to 18,923.38, 28,367.42 and 6,434.87

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Solution

The fourth proportional to 18,923.38, 28,367.42 and 6,434.87 is: 9,646.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923.38 : 28,367.42 = 6,434.87 : x
  2. Step 2: Convert to fraction form
    18,923.38/28,367.42 = 6,434.87/x
  3. Step 3: Cross multiply
    18,923.38x = 28,367.42 × 6,434.87
  4. Step 4: Simplify right side
    18,923.38x = 182,540,659.94
  5. Step 5: Solve for x
    x = 182,540,659.94/18,923.38
  6. Step 6: Final answer
    x = 9,646.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.