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Finding the Fourth Proportional to 11,872, 16,383.09 and 6,566.86

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Solution

The fourth proportional to 11,872, 16,383.09 and 6,566.86 is: 9,062.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872 : 16,383.09 = 6,566.86 : x
  2. Step 2: Convert to fraction form
    11,872/16,383.09 = 6,566.86/x
  3. Step 3: Cross multiply
    11,872x = 16,383.09 × 6,566.86
  4. Step 4: Simplify right side
    11,872x = 107,585,458.40
  5. Step 5: Solve for x
    x = 107,585,458.40/11,872
  6. Step 6: Final answer
    x = 9,062.12

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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.