Home / 13,599.08-20,399.12-3,739.13

Finding the Fourth Proportional to 13,599.08, 20,399.12 and 3,739.13

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Solution

The fourth proportional to 13,599.08, 20,399.12 and 3,739.13 is: 5,608.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.08 : 20,399.12 = 3,739.13 : x
  2. Step 2: Convert to fraction form
    13,599.08/20,399.12 = 3,739.13/x
  3. Step 3: Cross multiply
    13,599.08x = 20,399.12 × 3,739.13
  4. Step 4: Simplify right side
    13,599.08x = 76,274,961.57
  5. Step 5: Solve for x
    x = 76,274,961.57/13,599.08
  6. Step 6: Final answer
    x = 5,608.83

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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.