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Finding the Fourth Proportional to 12,968.44, 19,451.04 and 3,609.16

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Solution

The fourth proportional to 12,968.44, 19,451.04 and 3,609.16 is: 5,413.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968.44 : 19,451.04 = 3,609.16 : x
  2. Step 2: Convert to fraction form
    12,968.44/19,451.04 = 3,609.16/x
  3. Step 3: Cross multiply
    12,968.44x = 19,451.04 × 3,609.16
  4. Step 4: Simplify right side
    12,968.44x = 70,201,915.53
  5. Step 5: Solve for x
    x = 70,201,915.53/12,968.44
  6. Step 6: Final answer
    x = 5,413.29

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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.