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Finding the Fourth Proportional to 6,398.53, 8,826.84 and 5,512.79

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Solution

The fourth proportional to 6,398.53, 8,826.84 and 5,512.79 is: 7,604.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398.53 : 8,826.84 = 5,512.79 : x
  2. Step 2: Convert to fraction form
    6,398.53/8,826.84 = 5,512.79/x
  3. Step 3: Cross multiply
    6,398.53x = 8,826.84 × 5,512.79
  4. Step 4: Simplify right side
    6,398.53x = 48,660,537.35
  5. Step 5: Solve for x
    x = 48,660,537.35/6,398.53
  6. Step 6: Final answer
    x = 7,604.96

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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.