Home / 13,972.82-20,959.29-4,112.24

Finding the Fourth Proportional to 13,972.82, 20,959.29 and 4,112.24

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Solution

The fourth proportional to 13,972.82, 20,959.29 and 4,112.24 is: 6,168.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.82 : 20,959.29 = 4,112.24 : x
  2. Step 2: Convert to fraction form
    13,972.82/20,959.29 = 4,112.24/x
  3. Step 3: Cross multiply
    13,972.82x = 20,959.29 × 4,112.24
  4. Step 4: Simplify right side
    13,972.82x = 86,189,525.91
  5. Step 5: Solve for x
    x = 86,189,525.91/13,972.82
  6. Step 6: Final answer
    x = 6,168.37

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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.