Home / 11,185.39-15,435.81-6,149.92

Finding the Fourth Proportional to 11,185.39, 15,435.81 and 6,149.92

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Solution

The fourth proportional to 11,185.39, 15,435.81 and 6,149.92 is: 8,486.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,185.39 : 15,435.81 = 6,149.92 : x
  2. Step 2: Convert to fraction form
    11,185.39/15,435.81 = 6,149.92/x
  3. Step 3: Cross multiply
    11,185.39x = 15,435.81 × 6,149.92
  4. Step 4: Simplify right side
    11,185.39x = 94,928,996.64
  5. Step 5: Solve for x
    x = 94,928,996.64/11,185.39
  6. Step 6: Final answer
    x = 8,486.87

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