Home / 13,999.84-20,996.72-4,137.44

Finding the Fourth Proportional to 13,999.84, 20,996.72 and 4,137.44

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Solution

The fourth proportional to 13,999.84, 20,996.72 and 4,137.44 is: 6,205.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.84 : 20,996.72 = 4,137.44 : x
  2. Step 2: Convert to fraction form
    13,999.84/20,996.72 = 4,137.44/x
  3. Step 3: Cross multiply
    13,999.84x = 20,996.72 × 4,137.44
  4. Step 4: Simplify right side
    13,999.84x = 86,872,669.20
  5. Step 5: Solve for x
    x = 86,872,669.20/13,999.84
  6. Step 6: Final answer
    x = 6,205.26

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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.