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Finding the Fourth Proportional to 6,366.60, 8,668.11 and 6,346.86

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Solution

The fourth proportional to 6,366.60, 8,668.11 and 6,346.86 is: 8,641.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,366.60 : 8,668.11 = 6,346.86 : x
  2. Step 2: Convert to fraction form
    6,366.60/8,668.11 = 6,346.86/x
  3. Step 3: Cross multiply
    6,366.60x = 8,668.11 × 6,346.86
  4. Step 4: Simplify right side
    6,366.60x = 55,015,271.93
  5. Step 5: Solve for x
    x = 55,015,271.93/6,366.60
  6. Step 6: Final answer
    x = 8,641.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.