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Finding the Fourth Proportional to 6,516.96, 8,994.65 and 3,865.83

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Solution

The fourth proportional to 6,516.96, 8,994.65 and 3,865.83 is: 5,335.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.96 : 8,994.65 = 3,865.83 : x
  2. Step 2: Convert to fraction form
    6,516.96/8,994.65 = 3,865.83/x
  3. Step 3: Cross multiply
    6,516.96x = 8,994.65 × 3,865.83
  4. Step 4: Simplify right side
    6,516.96x = 34,771,734.75
  5. Step 5: Solve for x
    x = 34,771,734.75/6,516.96
  6. Step 6: Final answer
    x = 5,335.58

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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.