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Finding the Fourth Proportional to 18,657.37, 27,995.77 and 8,266.69

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Solution

The fourth proportional to 18,657.37, 27,995.77 and 8,266.69 is: 12,404.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,657.37 : 27,995.77 = 8,266.69 : x
  2. Step 2: Convert to fraction form
    18,657.37/27,995.77 = 8,266.69/x
  3. Step 3: Cross multiply
    18,657.37x = 27,995.77 × 8,266.69
  4. Step 4: Simplify right side
    18,657.37x = 231,432,292.25
  5. Step 5: Solve for x
    x = 231,432,292.25/18,657.37
  6. Step 6: Final answer
    x = 12,404.34

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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.