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Finding the Fourth Proportional to 11,957.27, 16,500.85 and 6,921.09

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Solution

The fourth proportional to 11,957.27, 16,500.85 and 6,921.09 is: 9,551.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,957.27 : 16,500.85 = 6,921.09 : x
  2. Step 2: Convert to fraction form
    11,957.27/16,500.85 = 6,921.09/x
  3. Step 3: Cross multiply
    11,957.27x = 16,500.85 × 6,921.09
  4. Step 4: Simplify right side
    11,957.27x = 114,203,850.62
  5. Step 5: Solve for x
    x = 114,203,850.62/11,957.27
  6. Step 6: Final answer
    x = 9,551.00

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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.