Home / 10,189.49-15,286.43-3,169.37

Finding the Fourth Proportional to 10,189.49, 15,286.43 and 3,169.37

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Solution

The fourth proportional to 10,189.49, 15,286.43 and 3,169.37 is: 4,754.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,189.49 : 15,286.43 = 3,169.37 : x
  2. Step 2: Convert to fraction form
    10,189.49/15,286.43 = 3,169.37/x
  3. Step 3: Cross multiply
    10,189.49x = 15,286.43 × 3,169.37
  4. Step 4: Simplify right side
    10,189.49x = 48,448,284.14
  5. Step 5: Solve for x
    x = 48,448,284.14/10,189.49
  6. Step 6: Final answer
    x = 4,754.73

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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.