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Finding the Fourth Proportional to 8,646.35, 12,967.45 and 3,963.44

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Solution

The fourth proportional to 8,646.35, 12,967.45 and 3,963.44 is: 5,944.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,646.35 : 12,967.45 = 3,963.44 : x
  2. Step 2: Convert to fraction form
    8,646.35/12,967.45 = 3,963.44/x
  3. Step 3: Cross multiply
    8,646.35x = 12,967.45 × 3,963.44
  4. Step 4: Simplify right side
    8,646.35x = 51,395,635.28
  5. Step 5: Solve for x
    x = 51,395,635.28/8,646.35
  6. Step 6: Final answer
    x = 5,944.20

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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.