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Finding the Fourth Proportional to 6,384.90, 8,793.54 and 5,500.38

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Solution

The fourth proportional to 6,384.90, 8,793.54 and 5,500.38 is: 7,575.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,384.90 : 8,793.54 = 5,500.38 : x
  2. Step 2: Convert to fraction form
    6,384.90/8,793.54 = 5,500.38/x
  3. Step 3: Cross multiply
    6,384.90x = 8,793.54 × 5,500.38
  4. Step 4: Simplify right side
    6,384.90x = 48,367,811.55
  5. Step 5: Solve for x
    x = 48,367,811.55/6,384.90
  6. Step 6: Final answer
    x = 7,575.34

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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.