Home / 9,629.96-13,238.31-8,280.62

Finding the Fourth Proportional to 9,629.96, 13,238.31 and 8,280.62

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Solution

The fourth proportional to 9,629.96, 13,238.31 and 8,280.62 is: 11,383.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,629.96 : 13,238.31 = 8,280.62 : x
  2. Step 2: Convert to fraction form
    9,629.96/13,238.31 = 8,280.62/x
  3. Step 3: Cross multiply
    9,629.96x = 13,238.31 × 8,280.62
  4. Step 4: Simplify right side
    9,629.96x = 109,621,348.36
  5. Step 5: Solve for x
    x = 109,621,348.36/9,629.96
  6. Step 6: Final answer
    x = 11,383.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.