Home / 10,128.44-13,976.88-5,936.60

Finding the Fourth Proportional to 10,128.44, 13,976.88 and 5,936.60

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Solution

The fourth proportional to 10,128.44, 13,976.88 and 5,936.60 is: 8,192.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.44 : 13,976.88 = 5,936.60 : x
  2. Step 2: Convert to fraction form
    10,128.44/13,976.88 = 5,936.60/x
  3. Step 3: Cross multiply
    10,128.44x = 13,976.88 × 5,936.60
  4. Step 4: Simplify right side
    10,128.44x = 82,975,145.81
  5. Step 5: Solve for x
    x = 82,975,145.81/10,128.44
  6. Step 6: Final answer
    x = 8,192.29

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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.