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Finding the Fourth Proportional to 6,944.87, 10,429.74 and 6,388.55

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Solution

The fourth proportional to 6,944.87, 10,429.74 and 6,388.55 is: 9,594.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,944.87 : 10,429.74 = 6,388.55 : x
  2. Step 2: Convert to fraction form
    6,944.87/10,429.74 = 6,388.55/x
  3. Step 3: Cross multiply
    6,944.87x = 10,429.74 × 6,388.55
  4. Step 4: Simplify right side
    6,944.87x = 66,630,915.48
  5. Step 5: Solve for x
    x = 66,630,915.48/6,944.87
  6. Step 6: Final answer
    x = 9,594.26

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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.