Home / 13,199.70-19,799.57-5,413.98

Finding the Fourth Proportional to 13,199.70, 19,799.57 and 5,413.98

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Solution

The fourth proportional to 13,199.70, 19,799.57 and 5,413.98 is: 8,120.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.70 : 19,799.57 = 5,413.98 : x
  2. Step 2: Convert to fraction form
    13,199.70/19,799.57 = 5,413.98/x
  3. Step 3: Cross multiply
    13,199.70x = 19,799.57 × 5,413.98
  4. Step 4: Simplify right side
    13,199.70x = 107,194,475.99
  5. Step 5: Solve for x
    x = 107,194,475.99/13,199.70
  6. Step 6: Final answer
    x = 8,120.98

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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.