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Finding the Fourth Proportional to 11,949.70, 16,465.05 and 8,800.90

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Solution

The fourth proportional to 11,949.70, 16,465.05 and 8,800.90 is: 12,126.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,949.70 : 16,465.05 = 8,800.90 : x
  2. Step 2: Convert to fraction form
    11,949.70/16,465.05 = 8,800.90/x
  3. Step 3: Cross multiply
    11,949.70x = 16,465.05 × 8,800.90
  4. Step 4: Simplify right side
    11,949.70x = 144,907,258.55
  5. Step 5: Solve for x
    x = 144,907,258.55/11,949.70
  6. Step 6: Final answer
    x = 12,126.43

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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.