Home / 13,353.12-20,032.54-3,993.86

Finding the Fourth Proportional to 13,353.12, 20,032.54 and 3,993.86

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Solution

The fourth proportional to 13,353.12, 20,032.54 and 3,993.86 is: 5,991.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.12 : 20,032.54 = 3,993.86 : x
  2. Step 2: Convert to fraction form
    13,353.12/20,032.54 = 3,993.86/x
  3. Step 3: Cross multiply
    13,353.12x = 20,032.54 × 3,993.86
  4. Step 4: Simplify right side
    13,353.12x = 80,007,160.20
  5. Step 5: Solve for x
    x = 80,007,160.20/13,353.12
  6. Step 6: Final answer
    x = 5,991.65

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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.