Home / 13,775.42-20,662.94-3,387.26

Finding the Fourth Proportional to 13,775.42, 20,662.94 and 3,387.26

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Solution

The fourth proportional to 13,775.42, 20,662.94 and 3,387.26 is: 5,080.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.42 : 20,662.94 = 3,387.26 : x
  2. Step 2: Convert to fraction form
    13,775.42/20,662.94 = 3,387.26/x
  3. Step 3: Cross multiply
    13,775.42x = 20,662.94 × 3,387.26
  4. Step 4: Simplify right side
    13,775.42x = 69,990,750.14
  5. Step 5: Solve for x
    x = 69,990,750.14/13,775.42
  6. Step 6: Final answer
    x = 5,080.84

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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.