Home / 13,183.28-18,193.04-8,146.36

Finding the Fourth Proportional to 13,183.28, 18,193.04 and 8,146.36

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Solution

The fourth proportional to 13,183.28, 18,193.04 and 8,146.36 is: 11,242.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.28 : 18,193.04 = 8,146.36 : x
  2. Step 2: Convert to fraction form
    13,183.28/18,193.04 = 8,146.36/x
  3. Step 3: Cross multiply
    13,183.28x = 18,193.04 × 8,146.36
  4. Step 4: Simplify right side
    13,183.28x = 148,207,053.33
  5. Step 5: Solve for x
    x = 148,207,053.33/13,183.28
  6. Step 6: Final answer
    x = 11,242.05

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.