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Finding the Fourth Proportional to 8,554.92, 12,814.50 and 6,879.99

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Solution

The fourth proportional to 8,554.92, 12,814.50 and 6,879.99 is: 10,305.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,554.92 : 12,814.50 = 6,879.99 : x
  2. Step 2: Convert to fraction form
    8,554.92/12,814.50 = 6,879.99/x
  3. Step 3: Cross multiply
    8,554.92x = 12,814.50 × 6,879.99
  4. Step 4: Simplify right side
    8,554.92x = 88,163,631.86
  5. Step 5: Solve for x
    x = 88,163,631.86/8,554.92
  6. Step 6: Final answer
    x = 10,305.61

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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.