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Finding the Fourth Proportional to 11,308.01, 16,961.60 and 2,988.04

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Solution

The fourth proportional to 11,308.01, 16,961.60 and 2,988.04 is: 4,481.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,308.01 : 16,961.60 = 2,988.04 : x
  2. Step 2: Convert to fraction form
    11,308.01/16,961.60 = 2,988.04/x
  3. Step 3: Cross multiply
    11,308.01x = 16,961.60 × 2,988.04
  4. Step 4: Simplify right side
    11,308.01x = 50,681,936.13
  5. Step 5: Solve for x
    x = 50,681,936.13/11,308.01
  6. Step 6: Final answer
    x = 4,481.95

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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.