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Finding the Fourth Proportional to 18,101.78, 27,135.65 and 9,334.34

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Solution

The fourth proportional to 18,101.78, 27,135.65 and 9,334.34 is: 13,992.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.78 : 27,135.65 = 9,334.34 : x
  2. Step 2: Convert to fraction form
    18,101.78/27,135.65 = 9,334.34/x
  3. Step 3: Cross multiply
    18,101.78x = 27,135.65 × 9,334.34
  4. Step 4: Simplify right side
    18,101.78x = 253,293,200.87
  5. Step 5: Solve for x
    x = 253,293,200.87/18,101.78
  6. Step 6: Final answer
    x = 13,992.73

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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.