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Finding the Fourth Proportional to 11,713.71, 17,551.13 and 8,243.67

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Solution

The fourth proportional to 11,713.71, 17,551.13 and 8,243.67 is: 12,351.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,713.71 : 17,551.13 = 8,243.67 : x
  2. Step 2: Convert to fraction form
    11,713.71/17,551.13 = 8,243.67/x
  3. Step 3: Cross multiply
    11,713.71x = 17,551.13 × 8,243.67
  4. Step 4: Simplify right side
    11,713.71x = 144,685,757.42
  5. Step 5: Solve for x
    x = 144,685,757.42/11,713.71
  6. Step 6: Final answer
    x = 12,351.83

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1.5x scale

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.