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Finding the Fourth Proportional to 6,643.08, 9,963.14 and 1,963.44

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Solution

The fourth proportional to 6,643.08, 9,963.14 and 1,963.44 is: 2,944.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.08 : 9,963.14 = 1,963.44 : x
  2. Step 2: Convert to fraction form
    6,643.08/9,963.14 = 1,963.44/x
  3. Step 3: Cross multiply
    6,643.08x = 9,963.14 × 1,963.44
  4. Step 4: Simplify right side
    6,643.08x = 19,562,017.78
  5. Step 5: Solve for x
    x = 19,562,017.78/6,643.08
  6. Step 6: Final answer
    x = 2,944.72

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Similar ratio
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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.