Home / 8,489.44-11,713.62-5,131.59

Finding the Fourth Proportional to 8,489.44, 11,713.62 and 5,131.59

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Solution

The fourth proportional to 8,489.44, 11,713.62 and 5,131.59 is: 7,080.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,489.44 : 11,713.62 = 5,131.59 : x
  2. Step 2: Convert to fraction form
    8,489.44/11,713.62 = 5,131.59/x
  3. Step 3: Cross multiply
    8,489.44x = 11,713.62 × 5,131.59
  4. Step 4: Simplify right side
    8,489.44x = 60,109,495.26
  5. Step 5: Solve for x
    x = 60,109,495.26/8,489.44
  6. Step 6: Final answer
    x = 7,080.50

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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.