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Finding the Fourth Proportional to 18,385.97, 27,583.05 and 6,699.20

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Solution

The fourth proportional to 18,385.97, 27,583.05 and 6,699.20 is: 10,050.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.97 : 27,583.05 = 6,699.20 : x
  2. Step 2: Convert to fraction form
    18,385.97/27,583.05 = 6,699.20/x
  3. Step 3: Cross multiply
    18,385.97x = 27,583.05 × 6,699.20
  4. Step 4: Simplify right side
    18,385.97x = 184,784,230.64
  5. Step 5: Solve for x
    x = 184,784,230.64/18,385.97
  6. Step 6: Final answer
    x = 10,050.29

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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.