Home / 13,481.68-18,600.33-7,512.22

Finding the Fourth Proportional to 13,481.68, 18,600.33 and 7,512.22

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Solution

The fourth proportional to 13,481.68, 18,600.33 and 7,512.22 is: 10,364.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.68 : 18,600.33 = 7,512.22 : x
  2. Step 2: Convert to fraction form
    13,481.68/18,600.33 = 7,512.22/x
  3. Step 3: Cross multiply
    13,481.68x = 18,600.33 × 7,512.22
  4. Step 4: Simplify right side
    13,481.68x = 139,729,771.03
  5. Step 5: Solve for x
    x = 139,729,771.03/13,481.68
  6. Step 6: Final answer
    x = 10,364.42

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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.