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Finding the Fourth Proportional to 11,164.81, 16,747.21 and 8,701.47

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Solution

The fourth proportional to 11,164.81, 16,747.21 and 8,701.47 is: 13,052.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,164.81 : 16,747.21 = 8,701.47 : x
  2. Step 2: Convert to fraction form
    11,164.81/16,747.21 = 8,701.47/x
  3. Step 3: Cross multiply
    11,164.81x = 16,747.21 × 8,701.47
  4. Step 4: Simplify right side
    11,164.81x = 145,725,345.40
  5. Step 5: Solve for x
    x = 145,725,345.40/11,164.81
  6. Step 6: Final answer
    x = 13,052.20

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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.