Home / 9,120.31-13,680.66-4,735.37

Finding the Fourth Proportional to 9,120.31, 13,680.66 and 4,735.37

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Solution

The fourth proportional to 9,120.31, 13,680.66 and 4,735.37 is: 7,103.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.31 : 13,680.66 = 4,735.37 : x
  2. Step 2: Convert to fraction form
    9,120.31/13,680.66 = 4,735.37/x
  3. Step 3: Cross multiply
    9,120.31x = 13,680.66 × 4,735.37
  4. Step 4: Simplify right side
    9,120.31x = 64,782,986.94
  5. Step 5: Solve for x
    x = 64,782,986.94/9,120.31
  6. Step 6: Final answer
    x = 7,103.16

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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.