Home / 9,190.92-12,683.01-5,212.41

Finding the Fourth Proportional to 9,190.92, 12,683.01 and 5,212.41

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Solution

The fourth proportional to 9,190.92, 12,683.01 and 5,212.41 is: 7,192.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.92 : 12,683.01 = 5,212.41 : x
  2. Step 2: Convert to fraction form
    9,190.92/12,683.01 = 5,212.41/x
  3. Step 3: Cross multiply
    9,190.92x = 12,683.01 × 5,212.41
  4. Step 4: Simplify right side
    9,190.92x = 66,109,048.15
  5. Step 5: Solve for x
    x = 66,109,048.15/9,190.92
  6. Step 6: Final answer
    x = 7,192.87

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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.