Home / 11,986.72-16,542.84-6,683.44

Finding the Fourth Proportional to 11,986.72, 16,542.84 and 6,683.44

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Solution

The fourth proportional to 11,986.72, 16,542.84 and 6,683.44 is: 9,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.72 : 16,542.84 = 6,683.44 : x
  2. Step 2: Convert to fraction form
    11,986.72/16,542.84 = 6,683.44/x
  3. Step 3: Cross multiply
    11,986.72x = 16,542.84 × 6,683.44
  4. Step 4: Simplify right side
    11,986.72x = 110,563,078.57
  5. Step 5: Solve for x
    x = 110,563,078.57/11,986.72
  6. Step 6: Final answer
    x = 9,223.80

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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.