Home / 11,683.35-16,122.87-6,647.55

Finding the Fourth Proportional to 11,683.35, 16,122.87 and 6,647.55

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Solution

The fourth proportional to 11,683.35, 16,122.87 and 6,647.55 is: 9,173.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,683.35 : 16,122.87 = 6,647.55 : x
  2. Step 2: Convert to fraction form
    11,683.35/16,122.87 = 6,647.55/x
  3. Step 3: Cross multiply
    11,683.35x = 16,122.87 × 6,647.55
  4. Step 4: Simplify right side
    11,683.35x = 107,177,584.47
  5. Step 5: Solve for x
    x = 107,177,584.47/11,683.35
  6. Step 6: Final answer
    x = 9,173.54

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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.