Home / 11,742.78-17,614.26-2,977.68

Finding the Fourth Proportional to 11,742.78, 17,614.26 and 2,977.68

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Solution

The fourth proportional to 11,742.78, 17,614.26 and 2,977.68 is: 4,466.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,742.78 : 17,614.26 = 2,977.68 : x
  2. Step 2: Convert to fraction form
    11,742.78/17,614.26 = 2,977.68/x
  3. Step 3: Cross multiply
    11,742.78x = 17,614.26 × 2,977.68
  4. Step 4: Simplify right side
    11,742.78x = 52,449,629.72
  5. Step 5: Solve for x
    x = 52,449,629.72/11,742.78
  6. Step 6: Final answer
    x = 4,466.54

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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.