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Finding the Fourth Proportional to 18,172.52, 27,259.02 and 6,486.44

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Solution

The fourth proportional to 18,172.52, 27,259.02 and 6,486.44 is: 9,729.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.52 : 27,259.02 = 6,486.44 : x
  2. Step 2: Convert to fraction form
    18,172.52/27,259.02 = 6,486.44/x
  3. Step 3: Cross multiply
    18,172.52x = 27,259.02 × 6,486.44
  4. Step 4: Simplify right side
    18,172.52x = 176,813,997.69
  5. Step 5: Solve for x
    x = 176,813,997.69/18,172.52
  6. Step 6: Final answer
    x = 9,729.75

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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.