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Finding the Fourth Proportional to 8,684.44, 11,985.12 and 4,906.30

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Solution

The fourth proportional to 8,684.44, 11,985.12 and 4,906.30 is: 6,771.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.44 : 11,985.12 = 4,906.30 : x
  2. Step 2: Convert to fraction form
    8,684.44/11,985.12 = 4,906.30/x
  3. Step 3: Cross multiply
    8,684.44x = 11,985.12 × 4,906.30
  4. Step 4: Simplify right side
    8,684.44x = 58,802,594.26
  5. Step 5: Solve for x
    x = 58,802,594.26/8,684.44
  6. Step 6: Final answer
    x = 6,771.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.