Home / 11,749.92-17,621.28-3,956.64

Finding the Fourth Proportional to 11,749.92, 17,621.28 and 3,956.64

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Solution

The fourth proportional to 11,749.92, 17,621.28 and 3,956.64 is: 5,933.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,749.92 : 17,621.28 = 3,956.64 : x
  2. Step 2: Convert to fraction form
    11,749.92/17,621.28 = 3,956.64/x
  3. Step 3: Cross multiply
    11,749.92x = 17,621.28 × 3,956.64
  4. Step 4: Simplify right side
    11,749.92x = 69,721,061.30
  5. Step 5: Solve for x
    x = 69,721,061.30/11,749.92
  6. Step 6: Final answer
    x = 5,933.75

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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.