Home / 9,190.26-12,683.76-8,940.06

Finding the Fourth Proportional to 9,190.26, 12,683.76 and 8,940.06

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Solution

The fourth proportional to 9,190.26, 12,683.76 and 8,940.06 is: 12,338.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.26 : 12,683.76 = 8,940.06 : x
  2. Step 2: Convert to fraction form
    9,190.26/12,683.76 = 8,940.06/x
  3. Step 3: Cross multiply
    9,190.26x = 12,683.76 × 8,940.06
  4. Step 4: Simplify right side
    9,190.26x = 113,393,575.43
  5. Step 5: Solve for x
    x = 113,393,575.43/9,190.26
  6. Step 6: Final answer
    x = 12,338.45

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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.