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Finding the Fourth Proportional to 8,762.64, 13,144.20 and 3,568.56

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Solution

The fourth proportional to 8,762.64, 13,144.20 and 3,568.56 is: 5,352.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.64 : 13,144.20 = 3,568.56 : x
  2. Step 2: Convert to fraction form
    8,762.64/13,144.20 = 3,568.56/x
  3. Step 3: Cross multiply
    8,762.64x = 13,144.20 × 3,568.56
  4. Step 4: Simplify right side
    8,762.64x = 46,905,866.35
  5. Step 5: Solve for x
    x = 46,905,866.35/8,762.64
  6. Step 6: Final answer
    x = 5,352.94

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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.