Home / 12,231.86-18,344.12-4,734.09

Finding the Fourth Proportional to 12,231.86, 18,344.12 and 4,734.09

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Solution

The fourth proportional to 12,231.86, 18,344.12 and 4,734.09 is: 7,099.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.86 : 18,344.12 = 4,734.09 : x
  2. Step 2: Convert to fraction form
    12,231.86/18,344.12 = 4,734.09/x
  3. Step 3: Cross multiply
    12,231.86x = 18,344.12 × 4,734.09
  4. Step 4: Simplify right side
    12,231.86x = 86,842,691.38
  5. Step 5: Solve for x
    x = 86,842,691.38/12,231.86
  6. Step 6: Final answer
    x = 7,099.72

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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.