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Finding the Fourth Proportional to 8,984.09, 12,308.26 and 8,647.39

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Solution

The fourth proportional to 8,984.09, 12,308.26 and 8,647.39 is: 11,846.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.09 : 12,308.26 = 8,647.39 : x
  2. Step 2: Convert to fraction form
    8,984.09/12,308.26 = 8,647.39/x
  3. Step 3: Cross multiply
    8,984.09x = 12,308.26 × 8,647.39
  4. Step 4: Simplify right side
    8,984.09x = 106,434,324.44
  5. Step 5: Solve for x
    x = 106,434,324.44/8,984.09
  6. Step 6: Final answer
    x = 11,846.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.