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Finding the Fourth Proportional to 11,660.81, 17,511.87 and 10,734.17

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Solution

The fourth proportional to 11,660.81, 17,511.87 and 10,734.17 is: 16,120.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,660.81 : 17,511.87 = 10,734.17 : x
  2. Step 2: Convert to fraction form
    11,660.81/17,511.87 = 10,734.17/x
  3. Step 3: Cross multiply
    11,660.81x = 17,511.87 × 10,734.17
  4. Step 4: Simplify right side
    11,660.81x = 187,975,389.60
  5. Step 5: Solve for x
    x = 187,975,389.60/11,660.81
  6. Step 6: Final answer
    x = 16,120.27

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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.