Home / 12,062.78-18,087.66-3,739.22

Finding the Fourth Proportional to 12,062.78, 18,087.66 and 3,739.22

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Solution

The fourth proportional to 12,062.78, 18,087.66 and 3,739.22 is: 5,606.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,062.78 : 18,087.66 = 3,739.22 : x
  2. Step 2: Convert to fraction form
    12,062.78/18,087.66 = 3,739.22/x
  3. Step 3: Cross multiply
    12,062.78x = 18,087.66 × 3,739.22
  4. Step 4: Simplify right side
    12,062.78x = 67,633,740.03
  5. Step 5: Solve for x
    x = 67,633,740.03/12,062.78
  6. Step 6: Final answer
    x = 5,606.81

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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.