Home / 18,113.50-27,170.16-10,999.54

Finding the Fourth Proportional to 18,113.50, 27,170.16 and 10,999.54

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Solution

The fourth proportional to 18,113.50, 27,170.16 and 10,999.54 is: 16,499.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,113.50 : 27,170.16 = 10,999.54 : x
  2. Step 2: Convert to fraction form
    18,113.50/27,170.16 = 10,999.54/x
  3. Step 3: Cross multiply
    18,113.50x = 27,170.16 × 10,999.54
  4. Step 4: Simplify right side
    18,113.50x = 298,859,261.73
  5. Step 5: Solve for x
    x = 298,859,261.73/18,113.50
  6. Step 6: Final answer
    x = 16,499.26

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.