Home / 12,014.22-18,021.33-5,440.26

Finding the Fourth Proportional to 12,014.22, 18,021.33 and 5,440.26

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Solution

The fourth proportional to 12,014.22, 18,021.33 and 5,440.26 is: 8,160.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,014.22 : 18,021.33 = 5,440.26 : x
  2. Step 2: Convert to fraction form
    12,014.22/18,021.33 = 5,440.26/x
  3. Step 3: Cross multiply
    12,014.22x = 18,021.33 × 5,440.26
  4. Step 4: Simplify right side
    12,014.22x = 98,040,720.75
  5. Step 5: Solve for x
    x = 98,040,720.75/12,014.22
  6. Step 6: Final answer
    x = 8,160.39

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