Home / 8,138.41-11,231.19-4,601.81

Finding the Fourth Proportional to 8,138.41, 11,231.19 and 4,601.81

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Solution

The fourth proportional to 8,138.41, 11,231.19 and 4,601.81 is: 6,350.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.41 : 11,231.19 = 4,601.81 : x
  2. Step 2: Convert to fraction form
    8,138.41/11,231.19 = 4,601.81/x
  3. Step 3: Cross multiply
    8,138.41x = 11,231.19 × 4,601.81
  4. Step 4: Simplify right side
    8,138.41x = 51,683,830.53
  5. Step 5: Solve for x
    x = 51,683,830.53/8,138.41
  6. Step 6: Final answer
    x = 6,350.61

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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.