Home / 12,234.14-16,879.05-8,455.95

Finding the Fourth Proportional to 12,234.14, 16,879.05 and 8,455.95

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Solution

The fourth proportional to 12,234.14, 16,879.05 and 8,455.95 is: 11,666.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,234.14 : 16,879.05 = 8,455.95 : x
  2. Step 2: Convert to fraction form
    12,234.14/16,879.05 = 8,455.95/x
  3. Step 3: Cross multiply
    12,234.14x = 16,879.05 × 8,455.95
  4. Step 4: Simplify right side
    12,234.14x = 142,728,402.85
  5. Step 5: Solve for x
    x = 142,728,402.85/12,234.14
  6. Step 6: Final answer
    x = 11,666.41

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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.