Home / 11,961.28-17,944.65-3,642.47

Finding the Fourth Proportional to 11,961.28, 17,944.65 and 3,642.47

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Solution

The fourth proportional to 11,961.28, 17,944.65 and 3,642.47 is: 5,464.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.28 : 17,944.65 = 3,642.47 : x
  2. Step 2: Convert to fraction form
    11,961.28/17,944.65 = 3,642.47/x
  3. Step 3: Cross multiply
    11,961.28x = 17,944.65 × 3,642.47
  4. Step 4: Simplify right side
    11,961.28x = 65,362,880.49
  5. Step 5: Solve for x
    x = 65,362,880.49/11,961.28
  6. Step 6: Final answer
    x = 5,464.54

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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.