Home / 18,179.10-25,083.54-10,221.12

Finding the Fourth Proportional to 18,179.10, 25,083.54 and 10,221.12

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Solution

The fourth proportional to 18,179.10, 25,083.54 and 10,221.12 is: 14,103.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.10 : 25,083.54 = 10,221.12 : x
  2. Step 2: Convert to fraction form
    18,179.10/25,083.54 = 10,221.12/x
  3. Step 3: Cross multiply
    18,179.10x = 25,083.54 × 10,221.12
  4. Step 4: Simplify right side
    18,179.10x = 256,381,872.36
  5. Step 5: Solve for x
    x = 256,381,872.36/18,179.10
  6. Step 6: Final answer
    x = 14,103.11

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Half scale
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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.