Home / 11,872.20-16,383.78-6,566.88

Finding the Fourth Proportional to 11,872.20, 16,383.78 and 6,566.88

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Solution

The fourth proportional to 11,872.20, 16,383.78 and 6,566.88 is: 9,062.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872.20 : 16,383.78 = 6,566.88 : x
  2. Step 2: Convert to fraction form
    11,872.20/16,383.78 = 6,566.88/x
  3. Step 3: Cross multiply
    11,872.20x = 16,383.78 × 6,566.88
  4. Step 4: Simplify right side
    11,872.20x = 107,590,317.21
  5. Step 5: Solve for x
    x = 107,590,317.21/11,872.20
  6. Step 6: Final answer
    x = 9,062.37

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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.