Home / 11,680.26-16,119.22-6,644.94

Finding the Fourth Proportional to 11,680.26, 16,119.22 and 6,644.94

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Solution

The fourth proportional to 11,680.26, 16,119.22 and 6,644.94 is: 9,170.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,680.26 : 16,119.22 = 6,644.94 : x
  2. Step 2: Convert to fraction form
    11,680.26/16,119.22 = 6,644.94/x
  3. Step 3: Cross multiply
    11,680.26x = 16,119.22 × 6,644.94
  4. Step 4: Simplify right side
    11,680.26x = 107,111,249.75
  5. Step 5: Solve for x
    x = 107,111,249.75/11,680.26
  6. Step 6: Final answer
    x = 9,170.28

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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.