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Finding the Fourth Proportional to 8,166.75, 11,270.21 and 4,440.75

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Solution

The fourth proportional to 8,166.75, 11,270.21 and 4,440.75 is: 6,128.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,166.75 : 11,270.21 = 4,440.75 : x
  2. Step 2: Convert to fraction form
    8,166.75/11,270.21 = 4,440.75/x
  3. Step 3: Cross multiply
    8,166.75x = 11,270.21 × 4,440.75
  4. Step 4: Simplify right side
    8,166.75x = 50,048,162.85
  5. Step 5: Solve for x
    x = 50,048,162.85/8,166.75
  6. Step 6: Final answer
    x = 6,128.28

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Half scale
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Double scale
Find fourth proportional to 8,167.75, 11,271.59 and 4,441.75
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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.