Home / 13,274.46-19,911.66-3,921.04

Finding the Fourth Proportional to 13,274.46, 19,911.66 and 3,921.04

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Solution

The fourth proportional to 13,274.46, 19,911.66 and 3,921.04 is: 5,881.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.46 : 19,911.66 = 3,921.04 : x
  2. Step 2: Convert to fraction form
    13,274.46/19,911.66 = 3,921.04/x
  3. Step 3: Cross multiply
    13,274.46x = 19,911.66 × 3,921.04
  4. Step 4: Simplify right side
    13,274.46x = 78,074,514.69
  5. Step 5: Solve for x
    x = 78,074,514.69/13,274.46
  6. Step 6: Final answer
    x = 5,881.56

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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.