Home / 13,992.20-20,942.60-8,732

Finding the Fourth Proportional to 13,992.20, 20,942.60 and 8,732

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Solution

The fourth proportional to 13,992.20, 20,942.60 and 8,732 is: 13,069.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.20 : 20,942.60 = 8,732 : x
  2. Step 2: Convert to fraction form
    13,992.20/20,942.60 = 8,732/x
  3. Step 3: Cross multiply
    13,992.20x = 20,942.60 × 8,732
  4. Step 4: Simplify right side
    13,992.20x = 182,870,783.20
  5. Step 5: Solve for x
    x = 182,870,783.20/13,992.20
  6. Step 6: Final answer
    x = 13,069.48

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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.