Home / 13,711.22-18,921.61-8,046.06

Finding the Fourth Proportional to 13,711.22, 18,921.61 and 8,046.06

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Solution

The fourth proportional to 13,711.22, 18,921.61 and 8,046.06 is: 11,103.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.22 : 18,921.61 = 8,046.06 : x
  2. Step 2: Convert to fraction form
    13,711.22/18,921.61 = 8,046.06/x
  3. Step 3: Cross multiply
    13,711.22x = 18,921.61 × 8,046.06
  4. Step 4: Simplify right side
    13,711.22x = 152,244,409.36
  5. Step 5: Solve for x
    x = 152,244,409.36/13,711.22
  6. Step 6: Final answer
    x = 11,103.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.