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Finding the Fourth Proportional to 18,115.25, 27,174.03 and 6,270.16

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Solution

The fourth proportional to 18,115.25, 27,174.03 and 6,270.16 is: 9,405.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.25 : 27,174.03 = 6,270.16 : x
  2. Step 2: Convert to fraction form
    18,115.25/27,174.03 = 6,270.16/x
  3. Step 3: Cross multiply
    18,115.25x = 27,174.03 × 6,270.16
  4. Step 4: Simplify right side
    18,115.25x = 170,385,510.72
  5. Step 5: Solve for x
    x = 170,385,510.72/18,115.25
  6. Step 6: Final answer
    x = 9,405.64

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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.