Home / 11,709.38-17,561.92-3,387.35

Finding the Fourth Proportional to 11,709.38, 17,561.92 and 3,387.35

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Solution

The fourth proportional to 11,709.38, 17,561.92 and 3,387.35 is: 5,080.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.38 : 17,561.92 = 3,387.35 : x
  2. Step 2: Convert to fraction form
    11,709.38/17,561.92 = 3,387.35/x
  3. Step 3: Cross multiply
    11,709.38x = 17,561.92 × 3,387.35
  4. Step 4: Simplify right side
    11,709.38x = 59,488,273.43
  5. Step 5: Solve for x
    x = 59,488,273.43/11,709.38
  6. Step 6: Final answer
    x = 5,080.40

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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.