Home / 13,487.89-20,231.81-3,627.18

Finding the Fourth Proportional to 13,487.89, 20,231.81 and 3,627.18

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Solution

The fourth proportional to 13,487.89, 20,231.81 and 3,627.18 is: 5,440.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,487.89 : 20,231.81 = 3,627.18 : x
  2. Step 2: Convert to fraction form
    13,487.89/20,231.81 = 3,627.18/x
  3. Step 3: Cross multiply
    13,487.89x = 20,231.81 × 3,627.18
  4. Step 4: Simplify right side
    13,487.89x = 73,384,297.30
  5. Step 5: Solve for x
    x = 73,384,297.30/13,487.89
  6. Step 6: Final answer
    x = 5,440.75

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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.