Home / 13,420.26-20,126.34-5,627.34

Finding the Fourth Proportional to 13,420.26, 20,126.34 and 5,627.34

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Solution

The fourth proportional to 13,420.26, 20,126.34 and 5,627.34 is: 8,439.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420.26 : 20,126.34 = 5,627.34 : x
  2. Step 2: Convert to fraction form
    13,420.26/20,126.34 = 5,627.34/x
  3. Step 3: Cross multiply
    13,420.26x = 20,126.34 × 5,627.34
  4. Step 4: Simplify right side
    13,420.26x = 113,257,758.14
  5. Step 5: Solve for x
    x = 113,257,758.14/13,420.26
  6. Step 6: Final answer
    x = 8,439.31

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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.