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Finding the Fourth Proportional to 8,662.60, 12,994.31 and 4,224.34

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Solution

The fourth proportional to 8,662.60, 12,994.31 and 4,224.34 is: 6,336.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,662.60 : 12,994.31 = 4,224.34 : x
  2. Step 2: Convert to fraction form
    8,662.60/12,994.31 = 4,224.34/x
  3. Step 3: Cross multiply
    8,662.60x = 12,994.31 × 4,224.34
  4. Step 4: Simplify right side
    8,662.60x = 54,892,383.51
  5. Step 5: Solve for x
    x = 54,892,383.51/8,662.60
  6. Step 6: Final answer
    x = 6,336.71

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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.