Home / 13,489.37-20,231.60-3,626.34

Finding the Fourth Proportional to 13,489.37, 20,231.60 and 3,626.34

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Solution

The fourth proportional to 13,489.37, 20,231.60 and 3,626.34 is: 5,438.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.37 : 20,231.60 = 3,626.34 : x
  2. Step 2: Convert to fraction form
    13,489.37/20,231.60 = 3,626.34/x
  3. Step 3: Cross multiply
    13,489.37x = 20,231.60 × 3,626.34
  4. Step 4: Simplify right side
    13,489.37x = 73,366,642.21
  5. Step 5: Solve for x
    x = 73,366,642.21/13,489.37
  6. Step 6: Final answer
    x = 5,438.85

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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.