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Finding the Fourth Proportional to 8,363.15, 12,550.80 and 6,739.30

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Solution

The fourth proportional to 8,363.15, 12,550.80 and 6,739.30 is: 10,113.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,363.15 : 12,550.80 = 6,739.30 : x
  2. Step 2: Convert to fraction form
    8,363.15/12,550.80 = 6,739.30/x
  3. Step 3: Cross multiply
    8,363.15x = 12,550.80 × 6,739.30
  4. Step 4: Simplify right side
    8,363.15x = 84,583,609.49
  5. Step 5: Solve for x
    x = 84,583,609.49/8,363.15
  6. Step 6: Final answer
    x = 10,113.85

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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.