Home / 8,683.35-11,971.89-5,694

Finding the Fourth Proportional to 8,683.35, 11,971.89 and 5,694

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Solution

The fourth proportional to 8,683.35, 11,971.89 and 5,694 is: 7,850.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,683.35 : 11,971.89 = 5,694 : x
  2. Step 2: Convert to fraction form
    8,683.35/11,971.89 = 5,694/x
  3. Step 3: Cross multiply
    8,683.35x = 11,971.89 × 5,694
  4. Step 4: Simplify right side
    8,683.35x = 68,167,941.66
  5. Step 5: Solve for x
    x = 68,167,941.66/8,683.35
  6. Step 6: Final answer
    x = 7,850.42

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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.