Home / 18,131.87-27,199.08-7,591.25

Finding the Fourth Proportional to 18,131.87, 27,199.08 and 7,591.25

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Solution

The fourth proportional to 18,131.87, 27,199.08 and 7,591.25 is: 11,387.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.87 : 27,199.08 = 7,591.25 : x
  2. Step 2: Convert to fraction form
    18,131.87/27,199.08 = 7,591.25/x
  3. Step 3: Cross multiply
    18,131.87x = 27,199.08 × 7,591.25
  4. Step 4: Simplify right side
    18,131.87x = 206,475,065.07
  5. Step 5: Solve for x
    x = 206,475,065.07/18,131.87
  6. Step 6: Final answer
    x = 11,387.41

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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.