Home / 12,219.66-18,324.09-5,199.39

Finding the Fourth Proportional to 12,219.66, 18,324.09 and 5,199.39

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Solution

The fourth proportional to 12,219.66, 18,324.09 and 5,199.39 is: 7,796.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.66 : 18,324.09 = 5,199.39 : x
  2. Step 2: Convert to fraction form
    12,219.66/18,324.09 = 5,199.39/x
  3. Step 3: Cross multiply
    12,219.66x = 18,324.09 × 5,199.39
  4. Step 4: Simplify right side
    12,219.66x = 95,274,090.31
  5. Step 5: Solve for x
    x = 95,274,090.31/12,219.66
  6. Step 6: Final answer
    x = 7,796.79

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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.