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Finding the Fourth Proportional to 6,812.10, 9,440.15 and 6,680.88

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Solution

The fourth proportional to 6,812.10, 9,440.15 and 6,680.88 is: 9,258.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,812.10 : 9,440.15 = 6,680.88 : x
  2. Step 2: Convert to fraction form
    6,812.10/9,440.15 = 6,680.88/x
  3. Step 3: Cross multiply
    6,812.10x = 9,440.15 × 6,680.88
  4. Step 4: Simplify right side
    6,812.10x = 63,068,475.93
  5. Step 5: Solve for x
    x = 63,068,475.93/6,812.10
  6. Step 6: Final answer
    x = 9,258.30

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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.