Home / 13,611.36-20,422.17-7,033.44

Finding the Fourth Proportional to 13,611.36, 20,422.17 and 7,033.44

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Solution

The fourth proportional to 13,611.36, 20,422.17 and 7,033.44 is: 10,552.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.36 : 20,422.17 = 7,033.44 : x
  2. Step 2: Convert to fraction form
    13,611.36/20,422.17 = 7,033.44/x
  3. Step 3: Cross multiply
    13,611.36x = 20,422.17 × 7,033.44
  4. Step 4: Simplify right side
    13,611.36x = 143,638,107.36
  5. Step 5: Solve for x
    x = 143,638,107.36/13,611.36
  6. Step 6: Final answer
    x = 10,552.81

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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.