Home / 13,687.44-20,533.56-5,682.21

Finding the Fourth Proportional to 13,687.44, 20,533.56 and 5,682.21

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Solution

The fourth proportional to 13,687.44, 20,533.56 and 5,682.21 is: 8,524.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,687.44 : 20,533.56 = 5,682.21 : x
  2. Step 2: Convert to fraction form
    13,687.44/20,533.56 = 5,682.21/x
  3. Step 3: Cross multiply
    13,687.44x = 20,533.56 × 5,682.21
  4. Step 4: Simplify right side
    13,687.44x = 116,675,999.97
  5. Step 5: Solve for x
    x = 116,675,999.97/13,687.44
  6. Step 6: Final answer
    x = 8,524.31

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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.