Home / 13,331.38-19,997.07-5,117.62

Finding the Fourth Proportional to 13,331.38, 19,997.07 and 5,117.62

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Solution

The fourth proportional to 13,331.38, 19,997.07 and 5,117.62 is: 7,676.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.38 : 19,997.07 = 5,117.62 : x
  2. Step 2: Convert to fraction form
    13,331.38/19,997.07 = 5,117.62/x
  3. Step 3: Cross multiply
    13,331.38x = 19,997.07 × 5,117.62
  4. Step 4: Simplify right side
    13,331.38x = 102,337,405.37
  5. Step 5: Solve for x
    x = 102,337,405.37/13,331.38
  6. Step 6: Final answer
    x = 7,676.43

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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.