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Finding the Fourth Proportional to 8,868.66, 13,303.30 and 3,321.42

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Solution

The fourth proportional to 8,868.66, 13,303.30 and 3,321.42 is: 4,982.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.66 : 13,303.30 = 3,321.42 : x
  2. Step 2: Convert to fraction form
    8,868.66/13,303.30 = 3,321.42/x
  3. Step 3: Cross multiply
    8,868.66x = 13,303.30 × 3,321.42
  4. Step 4: Simplify right side
    8,868.66x = 44,185,846.69
  5. Step 5: Solve for x
    x = 44,185,846.69/8,868.66
  6. Step 6: Final answer
    x = 4,982.25

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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.