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Finding the Fourth Proportional to 6,396.39, 8,827.03 and 4,162.07

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Solution

The fourth proportional to 6,396.39, 8,827.03 and 4,162.07 is: 5,743.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,396.39 : 8,827.03 = 4,162.07 : x
  2. Step 2: Convert to fraction form
    6,396.39/8,827.03 = 4,162.07/x
  3. Step 3: Cross multiply
    6,396.39x = 8,827.03 × 4,162.07
  4. Step 4: Simplify right side
    6,396.39x = 36,738,706.08
  5. Step 5: Solve for x
    x = 36,738,706.08/6,396.39
  6. Step 6: Final answer
    x = 5,743.66

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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.