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Finding the Fourth Proportional to 8,653.20, 12,983.04 and 3,459.52

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Solution

The fourth proportional to 8,653.20, 12,983.04 and 3,459.52 is: 5,190.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,653.20 : 12,983.04 = 3,459.52 : x
  2. Step 2: Convert to fraction form
    8,653.20/12,983.04 = 3,459.52/x
  3. Step 3: Cross multiply
    8,653.20x = 12,983.04 × 3,459.52
  4. Step 4: Simplify right side
    8,653.20x = 44,915,086.54
  5. Step 5: Solve for x
    x = 44,915,086.54/8,653.20
  6. Step 6: Final answer
    x = 5,190.58

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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.