Home / 8,987.41-13,481.25-3,144.21

Finding the Fourth Proportional to 8,987.41, 13,481.25 and 3,144.21

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Solution

The fourth proportional to 8,987.41, 13,481.25 and 3,144.21 is: 4,716.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.41 : 13,481.25 = 3,144.21 : x
  2. Step 2: Convert to fraction form
    8,987.41/13,481.25 = 3,144.21/x
  3. Step 3: Cross multiply
    8,987.41x = 13,481.25 × 3,144.21
  4. Step 4: Simplify right side
    8,987.41x = 42,387,881.06
  5. Step 5: Solve for x
    x = 42,387,881.06/8,987.41
  6. Step 6: Final answer
    x = 4,716.36

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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.