Home / 18,665.33-27,997.65-4,625.39

Finding the Fourth Proportional to 18,665.33, 27,997.65 and 4,625.39

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Solution

The fourth proportional to 18,665.33, 27,997.65 and 4,625.39 is: 6,937.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.33 : 27,997.65 = 4,625.39 : x
  2. Step 2: Convert to fraction form
    18,665.33/27,997.65 = 4,625.39/x
  3. Step 3: Cross multiply
    18,665.33x = 27,997.65 × 4,625.39
  4. Step 4: Simplify right side
    18,665.33x = 129,499,910.35
  5. Step 5: Solve for x
    x = 129,499,910.35/18,665.33
  6. Step 6: Final answer
    x = 6,937.99

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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.