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Finding the Fourth Proportional to 18,230.49, 27,340.07 and 7,134.12

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Solution

The fourth proportional to 18,230.49, 27,340.07 and 7,134.12 is: 10,698.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,230.49 : 27,340.07 = 7,134.12 : x
  2. Step 2: Convert to fraction form
    18,230.49/27,340.07 = 7,134.12/x
  3. Step 3: Cross multiply
    18,230.49x = 27,340.07 × 7,134.12
  4. Step 4: Simplify right side
    18,230.49x = 195,047,304.52
  5. Step 5: Solve for x
    x = 195,047,304.52/18,230.49
  6. Step 6: Final answer
    x = 10,698.96

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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.