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Finding the Fourth Proportional to 8,355.32, 12,532 and 3,357.49

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Solution

The fourth proportional to 8,355.32, 12,532 and 3,357.49 is: 5,035.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.32 : 12,532 = 3,357.49 : x
  2. Step 2: Convert to fraction form
    8,355.32/12,532 = 3,357.49/x
  3. Step 3: Cross multiply
    8,355.32x = 12,532 × 3,357.49
  4. Step 4: Simplify right side
    8,355.32x = 42,076,064.68
  5. Step 5: Solve for x
    x = 42,076,064.68/8,355.32
  6. Step 6: Final answer
    x = 5,035.84

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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.