Home / 11,147.70-16,728.03-4,578.60

Finding the Fourth Proportional to 11,147.70, 16,728.03 and 4,578.60

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Solution

The fourth proportional to 11,147.70, 16,728.03 and 4,578.60 is: 6,870.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.70 : 16,728.03 = 4,578.60 : x
  2. Step 2: Convert to fraction form
    11,147.70/16,728.03 = 4,578.60/x
  3. Step 3: Cross multiply
    11,147.70x = 16,728.03 × 4,578.60
  4. Step 4: Simplify right side
    11,147.70x = 76,590,958.16
  5. Step 5: Solve for x
    x = 76,590,958.16/11,147.70
  6. Step 6: Final answer
    x = 6,870.56

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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.