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Finding the Fourth Proportional to 8,611.37, 12,914.08 and 3,345.14

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Solution

The fourth proportional to 8,611.37, 12,914.08 and 3,345.14 is: 5,016.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,611.37 : 12,914.08 = 3,345.14 : x
  2. Step 2: Convert to fraction form
    8,611.37/12,914.08 = 3,345.14/x
  3. Step 3: Cross multiply
    8,611.37x = 12,914.08 × 3,345.14
  4. Step 4: Simplify right side
    8,611.37x = 43,199,405.57
  5. Step 5: Solve for x
    x = 43,199,405.57/8,611.37
  6. Step 6: Final answer
    x = 5,016.55

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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.