Home / 8,436.09-11,629.77-6,544.33

Finding the Fourth Proportional to 8,436.09, 11,629.77 and 6,544.33

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Solution

The fourth proportional to 8,436.09, 11,629.77 and 6,544.33 is: 9,021.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.09 : 11,629.77 = 6,544.33 : x
  2. Step 2: Convert to fraction form
    8,436.09/11,629.77 = 6,544.33/x
  3. Step 3: Cross multiply
    8,436.09x = 11,629.77 × 6,544.33
  4. Step 4: Simplify right side
    8,436.09x = 76,109,080.36
  5. Step 5: Solve for x
    x = 76,109,080.36/8,436.09
  6. Step 6: Final answer
    x = 9,021.85

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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.