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Finding the Fourth Proportional to 6,912.62, 9,537.62 and 4,116.14

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Solution

The fourth proportional to 6,912.62, 9,537.62 and 4,116.14 is: 5,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.62 : 9,537.62 = 4,116.14 : x
  2. Step 2: Convert to fraction form
    6,912.62/9,537.62 = 4,116.14/x
  3. Step 3: Cross multiply
    6,912.62x = 9,537.62 × 4,116.14
  4. Step 4: Simplify right side
    6,912.62x = 39,258,179.19
  5. Step 5: Solve for x
    x = 39,258,179.19/6,912.62
  6. Step 6: Final answer
    x = 5,679.20

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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.