Home / 13,928.98-20,893.12-3,399.07

Finding the Fourth Proportional to 13,928.98, 20,893.12 and 3,399.07

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Solution

The fourth proportional to 13,928.98, 20,893.12 and 3,399.07 is: 5,098.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.98 : 20,893.12 = 3,399.07 : x
  2. Step 2: Convert to fraction form
    13,928.98/20,893.12 = 3,399.07/x
  3. Step 3: Cross multiply
    13,928.98x = 20,893.12 × 3,399.07
  4. Step 4: Simplify right side
    13,928.98x = 71,017,177.40
  5. Step 5: Solve for x
    x = 71,017,177.40/13,928.98
  6. Step 6: Final answer
    x = 5,098.52

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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.