Home / 13,379.12-20,067.09-3,519.17

Finding the Fourth Proportional to 13,379.12, 20,067.09 and 3,519.17

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Solution

The fourth proportional to 13,379.12, 20,067.09 and 3,519.17 is: 5,278.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.12 : 20,067.09 = 3,519.17 : x
  2. Step 2: Convert to fraction form
    13,379.12/20,067.09 = 3,519.17/x
  3. Step 3: Cross multiply
    13,379.12x = 20,067.09 × 3,519.17
  4. Step 4: Simplify right side
    13,379.12x = 70,619,501.12
  5. Step 5: Solve for x
    x = 70,619,501.12/13,379.12
  6. Step 6: Final answer
    x = 5,278.34

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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.