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Finding the Fourth Proportional to 8,200.82, 11,316.84 and 4,664.90

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Solution

The fourth proportional to 8,200.82, 11,316.84 and 4,664.90 is: 6,437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,200.82 : 11,316.84 = 4,664.90 : x
  2. Step 2: Convert to fraction form
    8,200.82/11,316.84 = 4,664.90/x
  3. Step 3: Cross multiply
    8,200.82x = 11,316.84 × 4,664.90
  4. Step 4: Simplify right side
    8,200.82x = 52,791,926.92
  5. Step 5: Solve for x
    x = 52,791,926.92/8,200.82
  6. Step 6: Final answer
    x = 6,437.40

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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.