Home / 8,683.14-11,981.82-4,905.96

Finding the Fourth Proportional to 8,683.14, 11,981.82 and 4,905.96

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Solution

The fourth proportional to 8,683.14, 11,981.82 and 4,905.96 is: 6,769.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,683.14 : 11,981.82 = 4,905.96 : x
  2. Step 2: Convert to fraction form
    8,683.14/11,981.82 = 4,905.96/x
  3. Step 3: Cross multiply
    8,683.14x = 11,981.82 × 4,905.96
  4. Step 4: Simplify right side
    8,683.14x = 58,782,329.65
  5. Step 5: Solve for x
    x = 58,782,329.65/8,683.14
  6. Step 6: Final answer
    x = 6,769.71

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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.