Home / 11,774.87-17,663.83-3,878.19

Finding the Fourth Proportional to 11,774.87, 17,663.83 and 3,878.19

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Solution

The fourth proportional to 11,774.87, 17,663.83 and 3,878.19 is: 5,817.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,774.87 : 17,663.83 = 3,878.19 : x
  2. Step 2: Convert to fraction form
    11,774.87/17,663.83 = 3,878.19/x
  3. Step 3: Cross multiply
    11,774.87x = 17,663.83 × 3,878.19
  4. Step 4: Simplify right side
    11,774.87x = 68,503,731.28
  5. Step 5: Solve for x
    x = 68,503,731.28/11,774.87
  6. Step 6: Final answer
    x = 5,817.79

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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.