Home / 8,910.75-13,364.00-2,987.85

Finding the Fourth Proportional to 8,910.75, 13,364.00 and 2,987.85

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Solution

The fourth proportional to 8,910.75, 13,364.00 and 2,987.85 is: 4,481.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.75 : 13,364.00 = 2,987.85 : x
  2. Step 2: Convert to fraction form
    8,910.75/13,364.00 = 2,987.85/x
  3. Step 3: Cross multiply
    8,910.75x = 13,364.00 × 2,987.85
  4. Step 4: Simplify right side
    8,910.75x = 39,929,573.55
  5. Step 5: Solve for x
    x = 39,929,573.55/8,910.75
  6. Step 6: Final answer
    x = 4,481.06

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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.