Home / 18,145.48-27,218.38-4,997.56

Finding the Fourth Proportional to 18,145.48, 27,218.38 and 4,997.56

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Solution

The fourth proportional to 18,145.48, 27,218.38 and 4,997.56 is: 7,496.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.48 : 27,218.38 = 4,997.56 : x
  2. Step 2: Convert to fraction form
    18,145.48/27,218.38 = 4,997.56/x
  3. Step 3: Cross multiply
    18,145.48x = 27,218.38 × 4,997.56
  4. Step 4: Simplify right side
    18,145.48x = 136,025,487.15
  5. Step 5: Solve for x
    x = 136,025,487.15/18,145.48
  6. Step 6: Final answer
    x = 7,496.38

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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.