Home / 8,987.33-13,481.07-3,143.96

Finding the Fourth Proportional to 8,987.33, 13,481.07 and 3,143.96

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Solution

The fourth proportional to 8,987.33, 13,481.07 and 3,143.96 is: 4,715.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.33 : 13,481.07 = 3,143.96 : x
  2. Step 2: Convert to fraction form
    8,987.33/13,481.07 = 3,143.96/x
  3. Step 3: Cross multiply
    8,987.33x = 13,481.07 × 3,143.96
  4. Step 4: Simplify right side
    8,987.33x = 42,383,877.43
  5. Step 5: Solve for x
    x = 42,383,877.43/8,987.33
  6. Step 6: Final answer
    x = 4,715.96

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1.5x scale

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.