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Finding the Fourth Proportional to 8,868.40, 13,297.80 and 3,674.80

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Solution

The fourth proportional to 8,868.40, 13,297.80 and 3,674.80 is: 5,510.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.40 : 13,297.80 = 3,674.80 : x
  2. Step 2: Convert to fraction form
    8,868.40/13,297.80 = 3,674.80/x
  3. Step 3: Cross multiply
    8,868.40x = 13,297.80 × 3,674.80
  4. Step 4: Simplify right side
    8,868.40x = 48,866,755.44
  5. Step 5: Solve for x
    x = 48,866,755.44/8,868.40
  6. Step 6: Final answer
    x = 5,510.21

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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.