Home / 8,138.07-11,229.33-4,601.21

Finding the Fourth Proportional to 8,138.07, 11,229.33 and 4,601.21

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Solution

The fourth proportional to 8,138.07, 11,229.33 and 4,601.21 is: 6,348.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.07 : 11,229.33 = 4,601.21 : x
  2. Step 2: Convert to fraction form
    8,138.07/11,229.33 = 4,601.21/x
  3. Step 3: Cross multiply
    8,138.07x = 11,229.33 × 4,601.21
  4. Step 4: Simplify right side
    8,138.07x = 51,668,466.60
  5. Step 5: Solve for x
    x = 51,668,466.60/8,138.07
  6. Step 6: Final answer
    x = 6,348.98

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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.