Home / 12,401.44-17,118.48-8,211.04

Finding the Fourth Proportional to 12,401.44, 17,118.48 and 8,211.04

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Solution

The fourth proportional to 12,401.44, 17,118.48 and 8,211.04 is: 11,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,401.44 : 17,118.48 = 8,211.04 : x
  2. Step 2: Convert to fraction form
    12,401.44/17,118.48 = 8,211.04/x
  3. Step 3: Cross multiply
    12,401.44x = 17,118.48 × 8,211.04
  4. Step 4: Simplify right side
    12,401.44x = 140,560,524.02
  5. Step 5: Solve for x
    x = 140,560,524.02/12,401.44
  6. Step 6: Final answer
    x = 11,334.21

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.