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Finding the Fourth Proportional to 8,305.89, 11,464.90 and 4,949.75

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Solution

The fourth proportional to 8,305.89, 11,464.90 and 4,949.75 is: 6,832.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305.89 : 11,464.90 = 4,949.75 : x
  2. Step 2: Convert to fraction form
    8,305.89/11,464.90 = 4,949.75/x
  3. Step 3: Cross multiply
    8,305.89x = 11,464.90 × 4,949.75
  4. Step 4: Simplify right side
    8,305.89x = 56,748,432.91
  5. Step 5: Solve for x
    x = 56,748,432.91/8,305.89
  6. Step 6: Final answer
    x = 6,832.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.