Home / 13,067.38-18,033.20-7,403.28

Finding the Fourth Proportional to 13,067.38, 18,033.20 and 7,403.28

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Solution

The fourth proportional to 13,067.38, 18,033.20 and 7,403.28 is: 10,216.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,067.38 : 18,033.20 = 7,403.28 : x
  2. Step 2: Convert to fraction form
    13,067.38/18,033.20 = 7,403.28/x
  3. Step 3: Cross multiply
    13,067.38x = 18,033.20 × 7,403.28
  4. Step 4: Simplify right side
    13,067.38x = 133,504,828.90
  5. Step 5: Solve for x
    x = 133,504,828.90/13,067.38
  6. Step 6: Final answer
    x = 10,216.65

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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.