Home / 11,375.82-15,699.42-6,899.76

Finding the Fourth Proportional to 11,375.82, 15,699.42 and 6,899.76

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Solution

The fourth proportional to 11,375.82, 15,699.42 and 6,899.76 is: 9,522.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,375.82 : 15,699.42 = 6,899.76 : x
  2. Step 2: Convert to fraction form
    11,375.82/15,699.42 = 6,899.76/x
  3. Step 3: Cross multiply
    11,375.82x = 15,699.42 × 6,899.76
  4. Step 4: Simplify right side
    11,375.82x = 108,322,230.14
  5. Step 5: Solve for x
    x = 108,322,230.14/11,375.82
  6. Step 6: Final answer
    x = 9,522.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.