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Finding the Fourth Proportional to 18,262.76, 27,387.66 and 7,169

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Solution

The fourth proportional to 18,262.76, 27,387.66 and 7,169 is: 10,750.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,262.76 : 27,387.66 = 7,169 : x
  2. Step 2: Convert to fraction form
    18,262.76/27,387.66 = 7,169/x
  3. Step 3: Cross multiply
    18,262.76x = 27,387.66 × 7,169
  4. Step 4: Simplify right side
    18,262.76x = 196,342,134.54
  5. Step 5: Solve for x
    x = 196,342,134.54/18,262.76
  6. Step 6: Final answer
    x = 10,750.96

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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.