Home / 13,451.25-20,206.07-11,375.42

Finding the Fourth Proportional to 13,451.25, 20,206.07 and 11,375.42

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Solution

The fourth proportional to 13,451.25, 20,206.07 and 11,375.42 is: 17,087.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.25 : 20,206.07 = 11,375.42 : x
  2. Step 2: Convert to fraction form
    13,451.25/20,206.07 = 11,375.42/x
  3. Step 3: Cross multiply
    13,451.25x = 20,206.07 × 11,375.42
  4. Step 4: Simplify right side
    13,451.25x = 229,852,532.80
  5. Step 5: Solve for x
    x = 229,852,532.80/13,451.25
  6. Step 6: Final answer
    x = 17,087.82

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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.