Home / 13,783.60-20,675.46-3,395.36

Finding the Fourth Proportional to 13,783.60, 20,675.46 and 3,395.36

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Solution

The fourth proportional to 13,783.60, 20,675.46 and 3,395.36 is: 5,093.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.60 : 20,675.46 = 3,395.36 : x
  2. Step 2: Convert to fraction form
    13,783.60/20,675.46 = 3,395.36/x
  3. Step 3: Cross multiply
    13,783.60x = 20,675.46 × 3,395.36
  4. Step 4: Simplify right side
    13,783.60x = 70,200,629.87
  5. Step 5: Solve for x
    x = 70,200,629.87/13,783.60
  6. Step 6: Final answer
    x = 5,093.05

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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.