Home / 13,921.37-20,844.39-10,195.37

Finding the Fourth Proportional to 13,921.37, 20,844.39 and 10,195.37

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Solution

The fourth proportional to 13,921.37, 20,844.39 and 10,195.37 is: 15,265.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.37 : 20,844.39 = 10,195.37 : x
  2. Step 2: Convert to fraction form
    13,921.37/20,844.39 = 10,195.37/x
  3. Step 3: Cross multiply
    13,921.37x = 20,844.39 × 10,195.37
  4. Step 4: Simplify right side
    13,921.37x = 212,516,268.47
  5. Step 5: Solve for x
    x = 212,516,268.47/13,921.37
  6. Step 6: Final answer
    x = 15,265.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.