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Finding the Fourth Proportional to 18,009.48, 27,014.49 and 8,149.08

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Solution

The fourth proportional to 18,009.48, 27,014.49 and 8,149.08 is: 12,223.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009.48 : 27,014.49 = 8,149.08 : x
  2. Step 2: Convert to fraction form
    18,009.48/27,014.49 = 8,149.08/x
  3. Step 3: Cross multiply
    18,009.48x = 27,014.49 × 8,149.08
  4. Step 4: Simplify right side
    18,009.48x = 220,143,240.17
  5. Step 5: Solve for x
    x = 220,143,240.17/18,009.48
  6. Step 6: Final answer
    x = 12,223.74

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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.