Home / 11,291.92-16,938.69-3,896.28

Finding the Fourth Proportional to 11,291.92, 16,938.69 and 3,896.28

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Solution

The fourth proportional to 11,291.92, 16,938.69 and 3,896.28 is: 5,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291.92 : 16,938.69 = 3,896.28 : x
  2. Step 2: Convert to fraction form
    11,291.92/16,938.69 = 3,896.28/x
  3. Step 3: Cross multiply
    11,291.92x = 16,938.69 × 3,896.28
  4. Step 4: Simplify right side
    11,291.92x = 65,997,879.07
  5. Step 5: Solve for x
    x = 65,997,879.07/11,291.92
  6. Step 6: Final answer
    x = 5,844.70

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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.