Home / 11,709.74-17,561.96-3,387.90

Finding the Fourth Proportional to 11,709.74, 17,561.96 and 3,387.90

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Solution

The fourth proportional to 11,709.74, 17,561.96 and 3,387.90 is: 5,081.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.74 : 17,561.96 = 3,387.90 : x
  2. Step 2: Convert to fraction form
    11,709.74/17,561.96 = 3,387.90/x
  3. Step 3: Cross multiply
    11,709.74x = 17,561.96 × 3,387.90
  4. Step 4: Simplify right side
    11,709.74x = 59,498,164.28
  5. Step 5: Solve for x
    x = 59,498,164.28/11,709.74
  6. Step 6: Final answer
    x = 5,081.08

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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.