Home / 18,543.09-27,814.69-5,395.78

Finding the Fourth Proportional to 18,543.09, 27,814.69 and 5,395.78

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Solution

The fourth proportional to 18,543.09, 27,814.69 and 5,395.78 is: 8,093.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.09 : 27,814.69 = 5,395.78 : x
  2. Step 2: Convert to fraction form
    18,543.09/27,814.69 = 5,395.78/x
  3. Step 3: Cross multiply
    18,543.09x = 27,814.69 × 5,395.78
  4. Step 4: Simplify right side
    18,543.09x = 150,081,989.52
  5. Step 5: Solve for x
    x = 150,081,989.52/18,543.09
  6. Step 6: Final answer
    x = 8,093.69

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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.