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Finding the Fourth Proportional to 12,150.70, 18,230.10 and 10,844.20

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Solution

The fourth proportional to 12,150.70, 18,230.10 and 10,844.20 is: 16,269.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,150.70 : 18,230.10 = 10,844.20 : x
  2. Step 2: Convert to fraction form
    12,150.70/18,230.10 = 10,844.20/x
  3. Step 3: Cross multiply
    12,150.70x = 18,230.10 × 10,844.20
  4. Step 4: Simplify right side
    12,150.70x = 197,690,850.42
  5. Step 5: Solve for x
    x = 197,690,850.42/12,150.70
  6. Step 6: Final answer
    x = 16,269.91

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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.