Home / 18,131.38-27,191.31-5,816.50

Finding the Fourth Proportional to 18,131.38, 27,191.31 and 5,816.50

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Solution

The fourth proportional to 18,131.38, 27,191.31 and 5,816.50 is: 8,722.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.38 : 27,191.31 = 5,816.50 : x
  2. Step 2: Convert to fraction form
    18,131.38/27,191.31 = 5,816.50/x
  3. Step 3: Cross multiply
    18,131.38x = 27,191.31 × 5,816.50
  4. Step 4: Simplify right side
    18,131.38x = 158,158,254.62
  5. Step 5: Solve for x
    x = 158,158,254.62/18,131.38
  6. Step 6: Final answer
    x = 8,722.90

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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.