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Finding the Fourth Proportional to 8,487.44, 11,635.36 and 8,351.36

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Solution

The fourth proportional to 8,487.44, 11,635.36 and 8,351.36 is: 11,448.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.44 : 11,635.36 = 8,351.36 : x
  2. Step 2: Convert to fraction form
    8,487.44/11,635.36 = 8,351.36/x
  3. Step 3: Cross multiply
    8,487.44x = 11,635.36 × 8,351.36
  4. Step 4: Simplify right side
    8,487.44x = 97,171,080.09
  5. Step 5: Solve for x
    x = 97,171,080.09/8,487.44
  6. Step 6: Final answer
    x = 11,448.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.