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Finding the Fourth Proportional to 18,118.58, 27,186.56 and 9,353.49

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Solution

The fourth proportional to 18,118.58, 27,186.56 and 9,353.49 is: 14,034.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.58 : 27,186.56 = 9,353.49 : x
  2. Step 2: Convert to fraction form
    18,118.58/27,186.56 = 9,353.49/x
  3. Step 3: Cross multiply
    18,118.58x = 27,186.56 × 9,353.49
  4. Step 4: Simplify right side
    18,118.58x = 254,289,170.33
  5. Step 5: Solve for x
    x = 254,289,170.33/18,118.58
  6. Step 6: Final answer
    x = 14,034.72

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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.