Home / 18,569.43-27,855.09-5,422.80

Finding the Fourth Proportional to 18,569.43, 27,855.09 and 5,422.80

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Solution

The fourth proportional to 18,569.43, 27,855.09 and 5,422.80 is: 8,134.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,569.43 : 27,855.09 = 5,422.80 : x
  2. Step 2: Convert to fraction form
    18,569.43/27,855.09 = 5,422.80/x
  3. Step 3: Cross multiply
    18,569.43x = 27,855.09 × 5,422.80
  4. Step 4: Simplify right side
    18,569.43x = 151,052,582.05
  5. Step 5: Solve for x
    x = 151,052,582.05/18,569.43
  6. Step 6: Final answer
    x = 8,134.48

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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.