Home / 18,649.44-27,971.10-5,498.78

Finding the Fourth Proportional to 18,649.44, 27,971.10 and 5,498.78

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Solution

The fourth proportional to 18,649.44, 27,971.10 and 5,498.78 is: 8,247.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,649.44 : 27,971.10 = 5,498.78 : x
  2. Step 2: Convert to fraction form
    18,649.44/27,971.10 = 5,498.78/x
  3. Step 3: Cross multiply
    18,649.44x = 27,971.10 × 5,498.78
  4. Step 4: Simplify right side
    18,649.44x = 153,806,785.40
  5. Step 5: Solve for x
    x = 153,806,785.40/18,649.44
  6. Step 6: Final answer
    x = 8,247.26

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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.