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Finding the Fourth Proportional to 8,558.55, 12,819.93 and 6,883.62

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Solution

The fourth proportional to 8,558.55, 12,819.93 and 6,883.62 is: 10,311.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558.55 : 12,819.93 = 6,883.62 : x
  2. Step 2: Convert to fraction form
    8,558.55/12,819.93 = 6,883.62/x
  3. Step 3: Cross multiply
    8,558.55x = 12,819.93 × 6,883.62
  4. Step 4: Simplify right side
    8,558.55x = 88,247,526.55
  5. Step 5: Solve for x
    x = 88,247,526.55/8,558.55
  6. Step 6: Final answer
    x = 10,311.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.