Home / 11,856.96-16,364.24-6,821.09

Finding the Fourth Proportional to 11,856.96, 16,364.24 and 6,821.09

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Solution

The fourth proportional to 11,856.96, 16,364.24 and 6,821.09 is: 9,414.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,856.96 : 16,364.24 = 6,821.09 : x
  2. Step 2: Convert to fraction form
    11,856.96/16,364.24 = 6,821.09/x
  3. Step 3: Cross multiply
    11,856.96x = 16,364.24 × 6,821.09
  4. Step 4: Simplify right side
    11,856.96x = 111,621,872.00
  5. Step 5: Solve for x
    x = 111,621,872.00/11,856.96
  6. Step 6: Final answer
    x = 9,414.04

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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.