Home / 11,982.72-17,975.52-6,137.76

Finding the Fourth Proportional to 11,982.72, 17,975.52 and 6,137.76

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Solution

The fourth proportional to 11,982.72, 17,975.52 and 6,137.76 is: 9,207.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.72 : 17,975.52 = 6,137.76 : x
  2. Step 2: Convert to fraction form
    11,982.72/17,975.52 = 6,137.76/x
  3. Step 3: Cross multiply
    11,982.72x = 17,975.52 × 6,137.76
  4. Step 4: Simplify right side
    11,982.72x = 110,329,427.64
  5. Step 5: Solve for x
    x = 110,329,427.64/11,982.72
  6. Step 6: Final answer
    x = 9,207.38

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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.