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Finding the Fourth Proportional to 12,662.35, 18,994.34 and 4,871.16

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Solution

The fourth proportional to 12,662.35, 18,994.34 and 4,871.16 is: 7,307.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,662.35 : 18,994.34 = 4,871.16 : x
  2. Step 2: Convert to fraction form
    12,662.35/18,994.34 = 4,871.16/x
  3. Step 3: Cross multiply
    12,662.35x = 18,994.34 × 4,871.16
  4. Step 4: Simplify right side
    12,662.35x = 92,524,481.41
  5. Step 5: Solve for x
    x = 92,524,481.41/12,662.35
  6. Step 6: Final answer
    x = 7,307.06

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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.