Home / 18,206.48-27,310.68-10,422.80

Finding the Fourth Proportional to 18,206.48, 27,310.68 and 10,422.80

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Solution

The fourth proportional to 18,206.48, 27,310.68 and 10,422.80 is: 15,634.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,206.48 : 27,310.68 = 10,422.80 : x
  2. Step 2: Convert to fraction form
    18,206.48/27,310.68 = 10,422.80/x
  3. Step 3: Cross multiply
    18,206.48x = 27,310.68 × 10,422.80
  4. Step 4: Simplify right side
    18,206.48x = 284,653,755.50
  5. Step 5: Solve for x
    x = 284,653,755.50/18,206.48
  6. Step 6: Final answer
    x = 15,634.75

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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.