Home / 9,172.58-13,754.21-3,905.55

Finding the Fourth Proportional to 9,172.58, 13,754.21 and 3,905.55

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Solution

The fourth proportional to 9,172.58, 13,754.21 and 3,905.55 is: 5,856.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.58 : 13,754.21 = 3,905.55 : x
  2. Step 2: Convert to fraction form
    9,172.58/13,754.21 = 3,905.55/x
  3. Step 3: Cross multiply
    9,172.58x = 13,754.21 × 3,905.55
  4. Step 4: Simplify right side
    9,172.58x = 53,717,735.34
  5. Step 5: Solve for x
    x = 53,717,735.34/9,172.58
  6. Step 6: Final answer
    x = 5,856.34

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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.