Home / 13,382.24-20,067.53-7,140.85

Finding the Fourth Proportional to 13,382.24, 20,067.53 and 7,140.85

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Solution

The fourth proportional to 13,382.24, 20,067.53 and 7,140.85 is: 10,708.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.24 : 20,067.53 = 7,140.85 : x
  2. Step 2: Convert to fraction form
    13,382.24/20,067.53 = 7,140.85/x
  3. Step 3: Cross multiply
    13,382.24x = 20,067.53 × 7,140.85
  4. Step 4: Simplify right side
    13,382.24x = 143,299,135.73
  5. Step 5: Solve for x
    x = 143,299,135.73/13,382.24
  6. Step 6: Final answer
    x = 10,708.16

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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.