Home / 13,972.82-20,959.16-13,272.03

Finding the Fourth Proportional to 13,972.82, 20,959.16 and 13,272.03

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Solution

The fourth proportional to 13,972.82, 20,959.16 and 13,272.03 is: 19,907.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.82 : 20,959.16 = 13,272.03 : x
  2. Step 2: Convert to fraction form
    13,972.82/20,959.16 = 13,272.03/x
  3. Step 3: Cross multiply
    13,972.82x = 20,959.16 × 13,272.03
  4. Step 4: Simplify right side
    13,972.82x = 278,170,533.93
  5. Step 5: Solve for x
    x = 278,170,533.93/13,972.82
  6. Step 6: Final answer
    x = 19,907.98

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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.