Home / 11,672.10-16,107.42-6,366.78

Finding the Fourth Proportional to 11,672.10, 16,107.42 and 6,366.78

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Solution

The fourth proportional to 11,672.10, 16,107.42 and 6,366.78 is: 8,786.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,672.10 : 16,107.42 = 6,366.78 : x
  2. Step 2: Convert to fraction form
    11,672.10/16,107.42 = 6,366.78/x
  3. Step 3: Cross multiply
    11,672.10x = 16,107.42 × 6,366.78
  4. Step 4: Simplify right side
    11,672.10x = 102,552,399.51
  5. Step 5: Solve for x
    x = 102,552,399.51/11,672.10
  6. Step 6: Final answer
    x = 8,786.11

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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.