Home / 18,358.72-25,338.98-11,190.97

Finding the Fourth Proportional to 18,358.72, 25,338.98 and 11,190.97

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Solution

The fourth proportional to 18,358.72, 25,338.98 and 11,190.97 is: 15,445.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.72 : 25,338.98 = 11,190.97 : x
  2. Step 2: Convert to fraction form
    18,358.72/25,338.98 = 11,190.97/x
  3. Step 3: Cross multiply
    18,358.72x = 25,338.98 × 11,190.97
  4. Step 4: Simplify right side
    18,358.72x = 283,567,765.01
  5. Step 5: Solve for x
    x = 283,567,765.01/18,358.72
  6. Step 6: Final answer
    x = 15,445.94

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Double scale
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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.