Home / 11,828.92-16,323.68-6,451.40

Finding the Fourth Proportional to 11,828.92, 16,323.68 and 6,451.40

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Solution

The fourth proportional to 11,828.92, 16,323.68 and 6,451.40 is: 8,902.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,828.92 : 16,323.68 = 6,451.40 : x
  2. Step 2: Convert to fraction form
    11,828.92/16,323.68 = 6,451.40/x
  3. Step 3: Cross multiply
    11,828.92x = 16,323.68 × 6,451.40
  4. Step 4: Simplify right side
    11,828.92x = 105,310,589.15
  5. Step 5: Solve for x
    x = 105,310,589.15/11,828.92
  6. Step 6: Final answer
    x = 8,902.81

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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.