Home / 18,519.59-27,774.43-5,191.85

Finding the Fourth Proportional to 18,519.59, 27,774.43 and 5,191.85

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Solution

The fourth proportional to 18,519.59, 27,774.43 and 5,191.85 is: 7,786.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.59 : 27,774.43 = 5,191.85 : x
  2. Step 2: Convert to fraction form
    18,519.59/27,774.43 = 5,191.85/x
  3. Step 3: Cross multiply
    18,519.59x = 27,774.43 × 5,191.85
  4. Step 4: Simplify right side
    18,519.59x = 144,200,574.62
  5. Step 5: Solve for x
    x = 144,200,574.62/18,519.59
  6. Step 6: Final answer
    x = 7,786.38

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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.