Home / 11,821.38-17,756.73-9,976.14

Finding the Fourth Proportional to 11,821.38, 17,756.73 and 9,976.14

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Solution

The fourth proportional to 11,821.38, 17,756.73 and 9,976.14 is: 14,985.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.38 : 17,756.73 = 9,976.14 : x
  2. Step 2: Convert to fraction form
    11,821.38/17,756.73 = 9,976.14/x
  3. Step 3: Cross multiply
    11,821.38x = 17,756.73 × 9,976.14
  4. Step 4: Simplify right side
    11,821.38x = 177,143,624.42
  5. Step 5: Solve for x
    x = 177,143,624.42/11,821.38
  6. Step 6: Final answer
    x = 14,985.02

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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.