Home / 12,261.26-18,401.10-8,982.80

Finding the Fourth Proportional to 12,261.26, 18,401.10 and 8,982.80

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Solution

The fourth proportional to 12,261.26, 18,401.10 and 8,982.80 is: 13,480.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.26 : 18,401.10 = 8,982.80 : x
  2. Step 2: Convert to fraction form
    12,261.26/18,401.10 = 8,982.80/x
  3. Step 3: Cross multiply
    12,261.26x = 18,401.10 × 8,982.80
  4. Step 4: Simplify right side
    12,261.26x = 165,293,401.08
  5. Step 5: Solve for x
    x = 165,293,401.08/12,261.26
  6. Step 6: Final answer
    x = 13,480.95

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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.