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Finding the Fourth Proportional to 8,453.64, 12,682.80 and 3,525.60

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Solution

The fourth proportional to 8,453.64, 12,682.80 and 3,525.60 is: 5,289.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.64 : 12,682.80 = 3,525.60 : x
  2. Step 2: Convert to fraction form
    8,453.64/12,682.80 = 3,525.60/x
  3. Step 3: Cross multiply
    8,453.64x = 12,682.80 × 3,525.60
  4. Step 4: Simplify right side
    8,453.64x = 44,714,479.68
  5. Step 5: Solve for x
    x = 44,714,479.68/8,453.64
  6. Step 6: Final answer
    x = 5,289.38

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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.