Home / 13,467.81-20,200.17-5,147.64

Finding the Fourth Proportional to 13,467.81, 20,200.17 and 5,147.64

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Solution

The fourth proportional to 13,467.81, 20,200.17 and 5,147.64 is: 7,720.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,467.81 : 20,200.17 = 5,147.64 : x
  2. Step 2: Convert to fraction form
    13,467.81/20,200.17 = 5,147.64/x
  3. Step 3: Cross multiply
    13,467.81x = 20,200.17 × 5,147.64
  4. Step 4: Simplify right side
    13,467.81x = 103,983,203.10
  5. Step 5: Solve for x
    x = 103,983,203.10/13,467.81
  6. Step 6: Final answer
    x = 7,720.87

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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.