Home / 10,660.82-15,991.32-4,085.44

Finding the Fourth Proportional to 10,660.82, 15,991.32 and 4,085.44

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Solution

The fourth proportional to 10,660.82, 15,991.32 and 4,085.44 is: 6,128.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.82 : 15,991.32 = 4,085.44 : x
  2. Step 2: Convert to fraction form
    10,660.82/15,991.32 = 4,085.44/x
  3. Step 3: Cross multiply
    10,660.82x = 15,991.32 × 4,085.44
  4. Step 4: Simplify right side
    10,660.82x = 65,331,553.72
  5. Step 5: Solve for x
    x = 65,331,553.72/10,660.82
  6. Step 6: Final answer
    x = 6,128.20

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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.