Home / 9,149.75-13,724.42-4,219.38

Finding the Fourth Proportional to 9,149.75, 13,724.42 and 4,219.38

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Solution

The fourth proportional to 9,149.75, 13,724.42 and 4,219.38 is: 6,328.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,149.75 : 13,724.42 = 4,219.38 : x
  2. Step 2: Convert to fraction form
    9,149.75/13,724.42 = 4,219.38/x
  3. Step 3: Cross multiply
    9,149.75x = 13,724.42 × 4,219.38
  4. Step 4: Simplify right side
    9,149.75x = 57,908,522.16
  5. Step 5: Solve for x
    x = 57,908,522.16/9,149.75
  6. Step 6: Final answer
    x = 6,328.97

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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.