Home / 13,571.44-18,728.04-7,906.36

Finding the Fourth Proportional to 13,571.44, 18,728.04 and 7,906.36

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Solution

The fourth proportional to 13,571.44, 18,728.04 and 7,906.36 is: 10,910.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.44 : 18,728.04 = 7,906.36 : x
  2. Step 2: Convert to fraction form
    13,571.44/18,728.04 = 7,906.36/x
  3. Step 3: Cross multiply
    13,571.44x = 18,728.04 × 7,906.36
  4. Step 4: Simplify right side
    13,571.44x = 148,070,626.33
  5. Step 5: Solve for x
    x = 148,070,626.33/13,571.44
  6. Step 6: Final answer
    x = 10,910.46

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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.