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Finding the Fourth Proportional to 8,542.30, 12,793.05 and 4,145.62

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Solution

The fourth proportional to 8,542.30, 12,793.05 and 4,145.62 is: 6,208.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,542.30 : 12,793.05 = 4,145.62 : x
  2. Step 2: Convert to fraction form
    8,542.30/12,793.05 = 4,145.62/x
  3. Step 3: Cross multiply
    8,542.30x = 12,793.05 × 4,145.62
  4. Step 4: Simplify right side
    8,542.30x = 53,035,123.94
  5. Step 5: Solve for x
    x = 53,035,123.94/8,542.30
  6. Step 6: Final answer
    x = 6,208.53

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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.