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Finding the Fourth Proportional to 8,673.52, 12,906.44 and 8,644.36

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Solution

The fourth proportional to 8,673.52, 12,906.44 and 8,644.36 is: 12,863.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.52 : 12,906.44 = 8,644.36 : x
  2. Step 2: Convert to fraction form
    8,673.52/12,906.44 = 8,644.36/x
  3. Step 3: Cross multiply
    8,673.52x = 12,906.44 × 8,644.36
  4. Step 4: Simplify right side
    8,673.52x = 111,567,913.68
  5. Step 5: Solve for x
    x = 111,567,913.68/8,673.52
  6. Step 6: Final answer
    x = 12,863.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.