Home / 11,307.32-16,961.79-2,987.25

Finding the Fourth Proportional to 11,307.32, 16,961.79 and 2,987.25

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Solution

The fourth proportional to 11,307.32, 16,961.79 and 2,987.25 is: 4,481.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,307.32 : 16,961.79 = 2,987.25 : x
  2. Step 2: Convert to fraction form
    11,307.32/16,961.79 = 2,987.25/x
  3. Step 3: Cross multiply
    11,307.32x = 16,961.79 × 2,987.25
  4. Step 4: Simplify right side
    11,307.32x = 50,669,107.18
  5. Step 5: Solve for x
    x = 50,669,107.18/11,307.32
  6. Step 6: Final answer
    x = 4,481.09

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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.