Home / 8,684.94-11,990.37-5,705.96

Finding the Fourth Proportional to 8,684.94, 11,990.37 and 5,705.96

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Solution

The fourth proportional to 8,684.94, 11,990.37 and 5,705.96 is: 7,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.94 : 11,990.37 = 5,705.96 : x
  2. Step 2: Convert to fraction form
    8,684.94/11,990.37 = 5,705.96/x
  3. Step 3: Cross multiply
    8,684.94x = 11,990.37 × 5,705.96
  4. Step 4: Simplify right side
    8,684.94x = 68,416,511.65
  5. Step 5: Solve for x
    x = 68,416,511.65/8,684.94
  6. Step 6: Final answer
    x = 7,877.60

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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.