Home / 8,731.45-13,096.99-2,157.54

Finding the Fourth Proportional to 8,731.45, 13,096.99 and 2,157.54

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Solution

The fourth proportional to 8,731.45, 13,096.99 and 2,157.54 is: 3,236.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.45 : 13,096.99 = 2,157.54 : x
  2. Step 2: Convert to fraction form
    8,731.45/13,096.99 = 2,157.54/x
  3. Step 3: Cross multiply
    8,731.45x = 13,096.99 × 2,157.54
  4. Step 4: Simplify right side
    8,731.45x = 28,257,233.39
  5. Step 5: Solve for x
    x = 28,257,233.39/8,731.45
  6. Step 6: Final answer
    x = 3,236.26

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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.