Home / 11,935.10-16,464.19-8,105.39

Finding the Fourth Proportional to 11,935.10, 16,464.19 and 8,105.39

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Solution

The fourth proportional to 11,935.10, 16,464.19 and 8,105.39 is: 11,181.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,935.10 : 16,464.19 = 8,105.39 : x
  2. Step 2: Convert to fraction form
    11,935.10/16,464.19 = 8,105.39/x
  3. Step 3: Cross multiply
    11,935.10x = 16,464.19 × 8,105.39
  4. Step 4: Simplify right side
    11,935.10x = 133,448,680.98
  5. Step 5: Solve for x
    x = 133,448,680.98/11,935.10
  6. Step 6: Final answer
    x = 11,181.20

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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.