Home / 13,028.38-17,960.26-8,544.36

Finding the Fourth Proportional to 13,028.38, 17,960.26 and 8,544.36

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Solution

The fourth proportional to 13,028.38, 17,960.26 and 8,544.36 is: 11,778.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,028.38 : 17,960.26 = 8,544.36 : x
  2. Step 2: Convert to fraction form
    13,028.38/17,960.26 = 8,544.36/x
  3. Step 3: Cross multiply
    13,028.38x = 17,960.26 × 8,544.36
  4. Step 4: Simplify right side
    13,028.38x = 153,458,927.13
  5. Step 5: Solve for x
    x = 153,458,927.13/13,028.38
  6. Step 6: Final answer
    x = 11,778.82

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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.