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Finding the Fourth Proportional to 8,363.08, 12,541.74 and 3,431.32

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Solution

The fourth proportional to 8,363.08, 12,541.74 and 3,431.32 is: 5,145.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,363.08 : 12,541.74 = 3,431.32 : x
  2. Step 2: Convert to fraction form
    8,363.08/12,541.74 = 3,431.32/x
  3. Step 3: Cross multiply
    8,363.08x = 12,541.74 × 3,431.32
  4. Step 4: Simplify right side
    8,363.08x = 43,034,723.30
  5. Step 5: Solve for x
    x = 43,034,723.30/8,363.08
  6. Step 6: Final answer
    x = 5,145.80

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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.