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Finding the Fourth Proportional to 11,000.80, 15,163.41 and 8,606.71

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Solution

The fourth proportional to 11,000.80, 15,163.41 and 8,606.71 is: 11,863.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,000.80 : 15,163.41 = 8,606.71 : x
  2. Step 2: Convert to fraction form
    11,000.80/15,163.41 = 8,606.71/x
  3. Step 3: Cross multiply
    11,000.80x = 15,163.41 × 8,606.71
  4. Step 4: Simplify right side
    11,000.80x = 130,507,072.48
  5. Step 5: Solve for x
    x = 130,507,072.48/11,000.80
  6. Step 6: Final answer
    x = 11,863.42

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Half scale
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Double scale
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1.5x scale

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.