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Finding the Fourth Proportional to 7,662.60, 11,491.20 and 3,504.60

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Solution

The fourth proportional to 7,662.60, 11,491.20 and 3,504.60 is: 5,255.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,662.60 : 11,491.20 = 3,504.60 : x
  2. Step 2: Convert to fraction form
    7,662.60/11,491.20 = 3,504.60/x
  3. Step 3: Cross multiply
    7,662.60x = 11,491.20 × 3,504.60
  4. Step 4: Simplify right side
    7,662.60x = 40,272,059.52
  5. Step 5: Solve for x
    x = 40,272,059.52/7,662.60
  6. Step 6: Final answer
    x = 5,255.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.