Home / 13,467.37-20,199.51-5,147.20

Finding the Fourth Proportional to 13,467.37, 20,199.51 and 5,147.20

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Solution

The fourth proportional to 13,467.37, 20,199.51 and 5,147.20 is: 7,720.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,467.37 : 20,199.51 = 5,147.20 : x
  2. Step 2: Convert to fraction form
    13,467.37/20,199.51 = 5,147.20/x
  3. Step 3: Cross multiply
    13,467.37x = 20,199.51 × 5,147.20
  4. Step 4: Simplify right side
    13,467.37x = 103,970,943.12
  5. Step 5: Solve for x
    x = 103,970,943.12/13,467.37
  6. Step 6: Final answer
    x = 7,720.21

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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.