Home / 12,183.63-16,805.34-8,406.96

Finding the Fourth Proportional to 12,183.63, 16,805.34 and 8,406.96

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Solution

The fourth proportional to 12,183.63, 16,805.34 and 8,406.96 is: 11,596.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.63 : 16,805.34 = 8,406.96 : x
  2. Step 2: Convert to fraction form
    12,183.63/16,805.34 = 8,406.96/x
  3. Step 3: Cross multiply
    12,183.63x = 16,805.34 × 8,406.96
  4. Step 4: Simplify right side
    12,183.63x = 141,281,821.17
  5. Step 5: Solve for x
    x = 141,281,821.17/12,183.63
  6. Step 6: Final answer
    x = 11,596.04

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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.