Home / 13,979.98-20,962.38-6,944.56

Finding the Fourth Proportional to 13,979.98, 20,962.38 and 6,944.56

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Solution

The fourth proportional to 13,979.98, 20,962.38 and 6,944.56 is: 10,413.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.98 : 20,962.38 = 6,944.56 : x
  2. Step 2: Convert to fraction form
    13,979.98/20,962.38 = 6,944.56/x
  3. Step 3: Cross multiply
    13,979.98x = 20,962.38 × 6,944.56
  4. Step 4: Simplify right side
    13,979.98x = 145,574,505.65
  5. Step 5: Solve for x
    x = 145,574,505.65/13,979.98
  6. Step 6: Final answer
    x = 10,413.07

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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.