Home / 7,643.82-11,467.52-2,378.58

Finding the Fourth Proportional to 7,643.82, 11,467.52 and 2,378.58

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Solution

The fourth proportional to 7,643.82, 11,467.52 and 2,378.58 is: 3,568.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,643.82 : 11,467.52 = 2,378.58 : x
  2. Step 2: Convert to fraction form
    7,643.82/11,467.52 = 2,378.58/x
  3. Step 3: Cross multiply
    7,643.82x = 11,467.52 × 2,378.58
  4. Step 4: Simplify right side
    7,643.82x = 27,276,413.72
  5. Step 5: Solve for x
    x = 27,276,413.72/7,643.82
  6. Step 6: Final answer
    x = 3,568.43

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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.