Home / 13,512.42-20,271.06-5,721.84

Finding the Fourth Proportional to 13,512.42, 20,271.06 and 5,721.84

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Solution

The fourth proportional to 13,512.42, 20,271.06 and 5,721.84 is: 8,583.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.42 : 20,271.06 = 5,721.84 : x
  2. Step 2: Convert to fraction form
    13,512.42/20,271.06 = 5,721.84/x
  3. Step 3: Cross multiply
    13,512.42x = 20,271.06 × 5,721.84
  4. Step 4: Simplify right side
    13,512.42x = 115,987,761.95
  5. Step 5: Solve for x
    x = 115,987,761.95/13,512.42
  6. Step 6: Final answer
    x = 8,583.79

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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.