Home / 13,442.36-20,163.48-3,447.06

Finding the Fourth Proportional to 13,442.36, 20,163.48 and 3,447.06

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Solution

The fourth proportional to 13,442.36, 20,163.48 and 3,447.06 is: 5,170.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.36 : 20,163.48 = 3,447.06 : x
  2. Step 2: Convert to fraction form
    13,442.36/20,163.48 = 3,447.06/x
  3. Step 3: Cross multiply
    13,442.36x = 20,163.48 × 3,447.06
  4. Step 4: Simplify right side
    13,442.36x = 69,504,811.81
  5. Step 5: Solve for x
    x = 69,504,811.81/13,442.36
  6. Step 6: Final answer
    x = 5,170.58

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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.