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Finding the Fourth Proportional to 18,662.75, 27,997.01 and 6,977.63

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Solution

The fourth proportional to 18,662.75, 27,997.01 and 6,977.63 is: 10,467.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,662.75 : 27,997.01 = 6,977.63 : x
  2. Step 2: Convert to fraction form
    18,662.75/27,997.01 = 6,977.63/x
  3. Step 3: Cross multiply
    18,662.75x = 27,997.01 × 6,977.63
  4. Step 4: Simplify right side
    18,662.75x = 195,352,742.00
  5. Step 5: Solve for x
    x = 195,352,742.00/18,662.75
  6. Step 6: Final answer
    x = 10,467.52

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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.