Home / 13,722.78-20,576.44-4,361.07

Finding the Fourth Proportional to 13,722.78, 20,576.44 and 4,361.07

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Solution

The fourth proportional to 13,722.78, 20,576.44 and 4,361.07 is: 6,539.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.78 : 20,576.44 = 4,361.07 : x
  2. Step 2: Convert to fraction form
    13,722.78/20,576.44 = 4,361.07/x
  3. Step 3: Cross multiply
    13,722.78x = 20,576.44 × 4,361.07
  4. Step 4: Simplify right side
    13,722.78x = 89,735,273.39
  5. Step 5: Solve for x
    x = 89,735,273.39/13,722.78
  6. Step 6: Final answer
    x = 6,539.15

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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.