Home / 11,319.34-16,972.80-3,923.14

Finding the Fourth Proportional to 11,319.34, 16,972.80 and 3,923.14

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Solution

The fourth proportional to 11,319.34, 16,972.80 and 3,923.14 is: 5,882.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.34 : 16,972.80 = 3,923.14 : x
  2. Step 2: Convert to fraction form
    11,319.34/16,972.80 = 3,923.14/x
  3. Step 3: Cross multiply
    11,319.34x = 16,972.80 × 3,923.14
  4. Step 4: Simplify right side
    11,319.34x = 66,586,670.59
  5. Step 5: Solve for x
    x = 66,586,670.59/11,319.34
  6. Step 6: Final answer
    x = 5,882.56

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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.