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Finding the Fourth Proportional to 11,329.88, 15,635.30 and 6,361.88

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Solution

The fourth proportional to 11,329.88, 15,635.30 and 6,361.88 is: 8,779.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,329.88 : 15,635.30 = 6,361.88 : x
  2. Step 2: Convert to fraction form
    11,329.88/15,635.30 = 6,361.88/x
  3. Step 3: Cross multiply
    11,329.88x = 15,635.30 × 6,361.88
  4. Step 4: Simplify right side
    11,329.88x = 99,469,792.38
  5. Step 5: Solve for x
    x = 99,469,792.38/11,329.88
  6. Step 6: Final answer
    x = 8,779.43

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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.