Home / 8,616.36-11,889.09-5,080.26

Finding the Fourth Proportional to 8,616.36, 11,889.09 and 5,080.26

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Solution

The fourth proportional to 8,616.36, 11,889.09 and 5,080.26 is: 7,009.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.36 : 11,889.09 = 5,080.26 : x
  2. Step 2: Convert to fraction form
    8,616.36/11,889.09 = 5,080.26/x
  3. Step 3: Cross multiply
    8,616.36x = 11,889.09 × 5,080.26
  4. Step 4: Simplify right side
    8,616.36x = 60,399,668.36
  5. Step 5: Solve for x
    x = 60,399,668.36/8,616.36
  6. Step 6: Final answer
    x = 7,009.88

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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.