Home / 11,455.83-17,172.81-4,872.96

Finding the Fourth Proportional to 11,455.83, 17,172.81 and 4,872.96

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Solution

The fourth proportional to 11,455.83, 17,172.81 and 4,872.96 is: 7,304.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.83 : 17,172.81 = 4,872.96 : x
  2. Step 2: Convert to fraction form
    11,455.83/17,172.81 = 4,872.96/x
  3. Step 3: Cross multiply
    11,455.83x = 17,172.81 × 4,872.96
  4. Step 4: Simplify right side
    11,455.83x = 83,682,416.22
  5. Step 5: Solve for x
    x = 83,682,416.22/11,455.83
  6. Step 6: Final answer
    x = 7,304.79

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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.