Home / 18,543.30-27,816.78-5,395.80

Finding the Fourth Proportional to 18,543.30, 27,816.78 and 5,395.80

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Solution

The fourth proportional to 18,543.30, 27,816.78 and 5,395.80 is: 8,094.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.30 : 27,816.78 = 5,395.80 : x
  2. Step 2: Convert to fraction form
    18,543.30/27,816.78 = 5,395.80/x
  3. Step 3: Cross multiply
    18,543.30x = 27,816.78 × 5,395.80
  4. Step 4: Simplify right side
    18,543.30x = 150,093,781.52
  5. Step 5: Solve for x
    x = 150,093,781.52/18,543.30
  6. Step 6: Final answer
    x = 8,094.23

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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.