Home / 13,167.26-18,170.84-7,198.94

Finding the Fourth Proportional to 13,167.26, 18,170.84 and 7,198.94

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Solution

The fourth proportional to 13,167.26, 18,170.84 and 7,198.94 is: 9,934.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167.26 : 18,170.84 = 7,198.94 : x
  2. Step 2: Convert to fraction form
    13,167.26/18,170.84 = 7,198.94/x
  3. Step 3: Cross multiply
    13,167.26x = 18,170.84 × 7,198.94
  4. Step 4: Simplify right side
    13,167.26x = 130,810,786.91
  5. Step 5: Solve for x
    x = 130,810,786.91/13,167.26
  6. Step 6: Final answer
    x = 9,934.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.