Home / 11,107.26-15,314.09-8,709.80

Finding the Fourth Proportional to 11,107.26, 15,314.09 and 8,709.80

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Solution

The fourth proportional to 11,107.26, 15,314.09 and 8,709.80 is: 12,008.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.26 : 15,314.09 = 8,709.80 : x
  2. Step 2: Convert to fraction form
    11,107.26/15,314.09 = 8,709.80/x
  3. Step 3: Cross multiply
    11,107.26x = 15,314.09 × 8,709.80
  4. Step 4: Simplify right side
    11,107.26x = 133,382,540.96
  5. Step 5: Solve for x
    x = 133,382,540.96/11,107.26
  6. Step 6: Final answer
    x = 12,008.59

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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.