Home / 11,465.82-15,821.91-6,361.50

Finding the Fourth Proportional to 11,465.82, 15,821.91 and 6,361.50

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Solution

The fourth proportional to 11,465.82, 15,821.91 and 6,361.50 is: 8,778.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,465.82 : 15,821.91 = 6,361.50 : x
  2. Step 2: Convert to fraction form
    11,465.82/15,821.91 = 6,361.50/x
  3. Step 3: Cross multiply
    11,465.82x = 15,821.91 × 6,361.50
  4. Step 4: Simplify right side
    11,465.82x = 100,651,080.47
  5. Step 5: Solve for x
    x = 100,651,080.47/11,465.82
  6. Step 6: Final answer
    x = 8,778.36

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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.