Home / 12,114.26-18,171.40-4,321.26

Finding the Fourth Proportional to 12,114.26, 18,171.40 and 4,321.26

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Solution

The fourth proportional to 12,114.26, 18,171.40 and 4,321.26 is: 6,481.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114.26 : 18,171.40 = 4,321.26 : x
  2. Step 2: Convert to fraction form
    12,114.26/18,171.40 = 4,321.26/x
  3. Step 3: Cross multiply
    12,114.26x = 18,171.40 × 4,321.26
  4. Step 4: Simplify right side
    12,114.26x = 78,523,343.96
  5. Step 5: Solve for x
    x = 78,523,343.96/12,114.26
  6. Step 6: Final answer
    x = 6,481.89

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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.