Home / 13,481.26-18,604.10-7,512.88

Finding the Fourth Proportional to 13,481.26, 18,604.10 and 7,512.88

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Solution

The fourth proportional to 13,481.26, 18,604.10 and 7,512.88 is: 10,367.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.26 : 18,604.10 = 7,512.88 : x
  2. Step 2: Convert to fraction form
    13,481.26/18,604.10 = 7,512.88/x
  3. Step 3: Cross multiply
    13,481.26x = 18,604.10 × 7,512.88
  4. Step 4: Simplify right side
    13,481.26x = 139,770,370.81
  5. Step 5: Solve for x
    x = 139,770,370.81/13,481.26
  6. Step 6: Final answer
    x = 10,367.75

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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.