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Finding the Fourth Proportional to 8,532, 12,799.62 and 3,915

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Solution

The fourth proportional to 8,532, 12,799.62 and 3,915 is: 5,873.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,532 : 12,799.62 = 3,915 : x
  2. Step 2: Convert to fraction form
    8,532/12,799.62 = 3,915/x
  3. Step 3: Cross multiply
    8,532x = 12,799.62 × 3,915
  4. Step 4: Simplify right side
    8,532x = 50,110,512.30
  5. Step 5: Solve for x
    x = 50,110,512.30/8,532
  6. Step 6: Final answer
    x = 5,873.24

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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.