Home / 13,440.66-20,161.03-4,080.75

Finding the Fourth Proportional to 13,440.66, 20,161.03 and 4,080.75

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Solution

The fourth proportional to 13,440.66, 20,161.03 and 4,080.75 is: 6,121.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.66 : 20,161.03 = 4,080.75 : x
  2. Step 2: Convert to fraction form
    13,440.66/20,161.03 = 4,080.75/x
  3. Step 3: Cross multiply
    13,440.66x = 20,161.03 × 4,080.75
  4. Step 4: Simplify right side
    13,440.66x = 82,272,163.37
  5. Step 5: Solve for x
    x = 82,272,163.37/13,440.66
  6. Step 6: Final answer
    x = 6,121.14

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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.