Home / 13,358.37-20,040.42-3,999.11

Finding the Fourth Proportional to 13,358.37, 20,040.42 and 3,999.11

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Solution

The fourth proportional to 13,358.37, 20,040.42 and 3,999.11 is: 5,999.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.37 : 20,040.42 = 3,999.11 : x
  2. Step 2: Convert to fraction form
    13,358.37/20,040.42 = 3,999.11/x
  3. Step 3: Cross multiply
    13,358.37x = 20,040.42 × 3,999.11
  4. Step 4: Simplify right side
    13,358.37x = 80,143,824.03
  5. Step 5: Solve for x
    x = 80,143,824.03/13,358.37
  6. Step 6: Final answer
    x = 5,999.52

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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.