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Finding the Fourth Proportional to 12,267.70, 18,401.48 and 8,106.73

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Solution

The fourth proportional to 12,267.70, 18,401.48 and 8,106.73 is: 12,160.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,267.70 : 18,401.48 = 8,106.73 : x
  2. Step 2: Convert to fraction form
    12,267.70/18,401.48 = 8,106.73/x
  3. Step 3: Cross multiply
    12,267.70x = 18,401.48 × 8,106.73
  4. Step 4: Simplify right side
    12,267.70x = 149,175,877.33
  5. Step 5: Solve for x
    x = 149,175,877.33/12,267.70
  6. Step 6: Final answer
    x = 12,160.05

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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.