Home / 10,965.38-15,128.97-6,249.38

Finding the Fourth Proportional to 10,965.38, 15,128.97 and 6,249.38

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Solution

The fourth proportional to 10,965.38, 15,128.97 and 6,249.38 is: 8,622.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,965.38 : 15,128.97 = 6,249.38 : x
  2. Step 2: Convert to fraction form
    10,965.38/15,128.97 = 6,249.38/x
  3. Step 3: Cross multiply
    10,965.38x = 15,128.97 × 6,249.38
  4. Step 4: Simplify right side
    10,965.38x = 94,546,682.54
  5. Step 5: Solve for x
    x = 94,546,682.54/10,965.38
  6. Step 6: Final answer
    x = 8,622.29

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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.