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Finding the Fourth Proportional to 12,573, 18,860.41 and 3,808.60

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Solution

The fourth proportional to 12,573, 18,860.41 and 3,808.60 is: 5,713.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573 : 18,860.41 = 3,808.60 : x
  2. Step 2: Convert to fraction form
    12,573/18,860.41 = 3,808.60/x
  3. Step 3: Cross multiply
    12,573x = 18,860.41 × 3,808.60
  4. Step 4: Simplify right side
    12,573x = 71,831,757.53
  5. Step 5: Solve for x
    x = 71,831,757.53/12,573
  6. Step 6: Final answer
    x = 5,713.18

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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.