Home / 15,404.62-21,258.30-8,331.03

Finding the Fourth Proportional to 15,404.62, 21,258.30 and 8,331.03

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Solution

The fourth proportional to 15,404.62, 21,258.30 and 8,331.03 is: 11,496.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,404.62 : 21,258.30 = 8,331.03 : x
  2. Step 2: Convert to fraction form
    15,404.62/21,258.30 = 8,331.03/x
  3. Step 3: Cross multiply
    15,404.62x = 21,258.30 × 8,331.03
  4. Step 4: Simplify right side
    15,404.62x = 177,103,535.05
  5. Step 5: Solve for x
    x = 177,103,535.05/15,404.62
  6. Step 6: Final answer
    x = 11,496.78

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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.