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Finding the Fourth Proportional to 18,504.78, 27,757.17 and 10,709.34

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Solution

The fourth proportional to 18,504.78, 27,757.17 and 10,709.34 is: 16,064.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,504.78 : 27,757.17 = 10,709.34 : x
  2. Step 2: Convert to fraction form
    18,504.78/27,757.17 = 10,709.34/x
  3. Step 3: Cross multiply
    18,504.78x = 27,757.17 × 10,709.34
  4. Step 4: Simplify right side
    18,504.78x = 297,260,970.97
  5. Step 5: Solve for x
    x = 297,260,970.97/18,504.78
  6. Step 6: Final answer
    x = 16,064.01

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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.