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Finding the Fourth Proportional to 8,463.36, 12,699.36 and 3,845.76

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Solution

The fourth proportional to 8,463.36, 12,699.36 and 3,845.76 is: 5,770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,463.36 : 12,699.36 = 3,845.76 : x
  2. Step 2: Convert to fraction form
    8,463.36/12,699.36 = 3,845.76/x
  3. Step 3: Cross multiply
    8,463.36x = 12,699.36 × 3,845.76
  4. Step 4: Simplify right side
    8,463.36x = 48,838,690.71
  5. Step 5: Solve for x
    x = 48,838,690.71/8,463.36
  6. Step 6: Final answer
    x = 5,770.60

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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.