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Finding the Fourth Proportional to 8,518, 12,773.16 and 3,323.76

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Solution

The fourth proportional to 8,518, 12,773.16 and 3,323.76 is: 4,984.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518 : 12,773.16 = 3,323.76 : x
  2. Step 2: Convert to fraction form
    8,518/12,773.16 = 3,323.76/x
  3. Step 3: Cross multiply
    8,518x = 12,773.16 × 3,323.76
  4. Step 4: Simplify right side
    8,518x = 42,454,918.28
  5. Step 5: Solve for x
    x = 42,454,918.28/8,518
  6. Step 6: Final answer
    x = 4,984.14

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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.