Home / 9,435.78-14,157.48-3,891.90

Finding the Fourth Proportional to 9,435.78, 14,157.48 and 3,891.90

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Solution

The fourth proportional to 9,435.78, 14,157.48 and 3,891.90 is: 5,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,435.78 : 14,157.48 = 3,891.90 : x
  2. Step 2: Convert to fraction form
    9,435.78/14,157.48 = 3,891.90/x
  3. Step 3: Cross multiply
    9,435.78x = 14,157.48 × 3,891.90
  4. Step 4: Simplify right side
    9,435.78x = 55,099,496.41
  5. Step 5: Solve for x
    x = 55,099,496.41/9,435.78
  6. Step 6: Final answer
    x = 5,839.42

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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.