Home / 9,539.09-13,163.94-5,290.80

Finding the Fourth Proportional to 9,539.09, 13,163.94 and 5,290.80

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Solution

The fourth proportional to 9,539.09, 13,163.94 and 5,290.80 is: 7,301.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,539.09 : 13,163.94 = 5,290.80 : x
  2. Step 2: Convert to fraction form
    9,539.09/13,163.94 = 5,290.80/x
  3. Step 3: Cross multiply
    9,539.09x = 13,163.94 × 5,290.80
  4. Step 4: Simplify right side
    9,539.09x = 69,647,822.62
  5. Step 5: Solve for x
    x = 69,647,822.62/9,539.09
  6. Step 6: Final answer
    x = 7,301.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.