Home / 13,358.12-20,040.04-3,998.86

Finding the Fourth Proportional to 13,358.12, 20,040.04 and 3,998.86

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Solution

The fourth proportional to 13,358.12, 20,040.04 and 3,998.86 is: 5,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.12 : 20,040.04 = 3,998.86 : x
  2. Step 2: Convert to fraction form
    13,358.12/20,040.04 = 3,998.86/x
  3. Step 3: Cross multiply
    13,358.12x = 20,040.04 × 3,998.86
  4. Step 4: Simplify right side
    13,358.12x = 80,137,314.35
  5. Step 5: Solve for x
    x = 80,137,314.35/13,358.12
  6. Step 6: Final answer
    x = 5,999.15

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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.