Home / 11,174.78-16,757.58-4,155.28

Finding the Fourth Proportional to 11,174.78, 16,757.58 and 4,155.28

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Solution

The fourth proportional to 11,174.78, 16,757.58 and 4,155.28 is: 6,231.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,174.78 : 16,757.58 = 4,155.28 : x
  2. Step 2: Convert to fraction form
    11,174.78/16,757.58 = 4,155.28/x
  3. Step 3: Cross multiply
    11,174.78x = 16,757.58 × 4,155.28
  4. Step 4: Simplify right side
    11,174.78x = 69,632,437.02
  5. Step 5: Solve for x
    x = 69,632,437.02/11,174.78
  6. Step 6: Final answer
    x = 6,231.21

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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.