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Finding the Fourth Proportional to 12,662.84, 18,994.28 and 3,302.85

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Solution

The fourth proportional to 12,662.84, 18,994.28 and 3,302.85 is: 4,954.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,662.84 : 18,994.28 = 3,302.85 : x
  2. Step 2: Convert to fraction form
    12,662.84/18,994.28 = 3,302.85/x
  3. Step 3: Cross multiply
    12,662.84x = 18,994.28 × 3,302.85
  4. Step 4: Simplify right side
    12,662.84x = 62,735,257.70
  5. Step 5: Solve for x
    x = 62,735,257.70/12,662.84
  6. Step 6: Final answer
    x = 4,954.28

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1.5x scale

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.