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Finding the Fourth Proportional to 8,989.46, 13,481.46 and 2,984.34

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Solution

The fourth proportional to 8,989.46, 13,481.46 and 2,984.34 is: 4,475.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.46 : 13,481.46 = 2,984.34 : x
  2. Step 2: Convert to fraction form
    8,989.46/13,481.46 = 2,984.34/x
  3. Step 3: Cross multiply
    8,989.46x = 13,481.46 × 2,984.34
  4. Step 4: Simplify right side
    8,989.46x = 40,233,260.34
  5. Step 5: Solve for x
    x = 40,233,260.34/8,989.46
  6. Step 6: Final answer
    x = 4,475.60

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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.