Home / 13,163.40-19,716.30-11,704.20

Finding the Fourth Proportional to 13,163.40, 19,716.30 and 11,704.20

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Solution

The fourth proportional to 13,163.40, 19,716.30 and 11,704.20 is: 17,530.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.40 : 19,716.30 = 11,704.20 : x
  2. Step 2: Convert to fraction form
    13,163.40/19,716.30 = 11,704.20/x
  3. Step 3: Cross multiply
    13,163.40x = 19,716.30 × 11,704.20
  4. Step 4: Simplify right side
    13,163.40x = 230,763,518.46
  5. Step 5: Solve for x
    x = 230,763,518.46/13,163.40
  6. Step 6: Final answer
    x = 17,530.69

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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.