Home / 18,499.08-27,755.62-11,108.70

Finding the Fourth Proportional to 18,499.08, 27,755.62 and 11,108.70

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Solution

The fourth proportional to 18,499.08, 27,755.62 and 11,108.70 is: 16,667.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,499.08 : 27,755.62 = 11,108.70 : x
  2. Step 2: Convert to fraction form
    18,499.08/27,755.62 = 11,108.70/x
  3. Step 3: Cross multiply
    18,499.08x = 27,755.62 × 11,108.70
  4. Step 4: Simplify right side
    18,499.08x = 308,328,855.89
  5. Step 5: Solve for x
    x = 308,328,855.89/18,499.08
  6. Step 6: Final answer
    x = 16,667.25

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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.