Home / 12,440.39-18,662.60-3,676.19

Finding the Fourth Proportional to 12,440.39, 18,662.60 and 3,676.19

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Solution

The fourth proportional to 12,440.39, 18,662.60 and 3,676.19 is: 5,514.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.39 : 18,662.60 = 3,676.19 : x
  2. Step 2: Convert to fraction form
    12,440.39/18,662.60 = 3,676.19/x
  3. Step 3: Cross multiply
    12,440.39x = 18,662.60 × 3,676.19
  4. Step 4: Simplify right side
    12,440.39x = 68,607,179.37
  5. Step 5: Solve for x
    x = 68,607,179.37/12,440.39
  6. Step 6: Final answer
    x = 5,514.88

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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.