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Finding the Fourth Proportional to 8,147.08, 12,222.14 and 3,705.08

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Solution

The fourth proportional to 8,147.08, 12,222.14 and 3,705.08 is: 5,558.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.08 : 12,222.14 = 3,705.08 : x
  2. Step 2: Convert to fraction form
    8,147.08/12,222.14 = 3,705.08/x
  3. Step 3: Cross multiply
    8,147.08x = 12,222.14 × 3,705.08
  4. Step 4: Simplify right side
    8,147.08x = 45,284,006.47
  5. Step 5: Solve for x
    x = 45,284,006.47/8,147.08
  6. Step 6: Final answer
    x = 5,558.31

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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.