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Finding the Fourth Proportional to 6,843.62, 10,258.11 and 4,889.90

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Solution

The fourth proportional to 6,843.62, 10,258.11 and 4,889.90 is: 7,329.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,843.62 : 10,258.11 = 4,889.90 : x
  2. Step 2: Convert to fraction form
    6,843.62/10,258.11 = 4,889.90/x
  3. Step 3: Cross multiply
    6,843.62x = 10,258.11 × 4,889.90
  4. Step 4: Simplify right side
    6,843.62x = 50,161,080.80
  5. Step 5: Solve for x
    x = 50,161,080.80/6,843.62
  6. Step 6: Final answer
    x = 7,329.62

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1.5x scale

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.