Home / 11,406.51-17,105.43-5,481.75

Finding the Fourth Proportional to 11,406.51, 17,105.43 and 5,481.75

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Solution

The fourth proportional to 11,406.51, 17,105.43 and 5,481.75 is: 8,220.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.51 : 17,105.43 = 5,481.75 : x
  2. Step 2: Convert to fraction form
    11,406.51/17,105.43 = 5,481.75/x
  3. Step 3: Cross multiply
    11,406.51x = 17,105.43 × 5,481.75
  4. Step 4: Simplify right side
    11,406.51x = 93,767,690.90
  5. Step 5: Solve for x
    x = 93,767,690.90/11,406.51
  6. Step 6: Final answer
    x = 8,220.54

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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.