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Finding the Fourth Proportional to 8,540.96, 12,809.52 and 3,068.96

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Solution

The fourth proportional to 8,540.96, 12,809.52 and 3,068.96 is: 4,602.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.96 : 12,809.52 = 3,068.96 : x
  2. Step 2: Convert to fraction form
    8,540.96/12,809.52 = 3,068.96/x
  3. Step 3: Cross multiply
    8,540.96x = 12,809.52 × 3,068.96
  4. Step 4: Simplify right side
    8,540.96x = 39,311,904.50
  5. Step 5: Solve for x
    x = 39,311,904.50/8,540.96
  6. Step 6: Final answer
    x = 4,602.75

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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.