Home / 13,939.80-20,907.58-4,076.44

Finding the Fourth Proportional to 13,939.80, 20,907.58 and 4,076.44

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Solution

The fourth proportional to 13,939.80, 20,907.58 and 4,076.44 is: 6,114.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.80 : 20,907.58 = 4,076.44 : x
  2. Step 2: Convert to fraction form
    13,939.80/20,907.58 = 4,076.44/x
  3. Step 3: Cross multiply
    13,939.80x = 20,907.58 × 4,076.44
  4. Step 4: Simplify right side
    13,939.80x = 85,228,495.42
  5. Step 5: Solve for x
    x = 85,228,495.42/13,939.80
  6. Step 6: Final answer
    x = 6,114.04

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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.