Home / 13,210.42-19,816.23-5,413.75

Finding the Fourth Proportional to 13,210.42, 19,816.23 and 5,413.75

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Solution

The fourth proportional to 13,210.42, 19,816.23 and 5,413.75 is: 8,120.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.42 : 19,816.23 = 5,413.75 : x
  2. Step 2: Convert to fraction form
    13,210.42/19,816.23 = 5,413.75/x
  3. Step 3: Cross multiply
    13,210.42x = 19,816.23 × 5,413.75
  4. Step 4: Simplify right side
    13,210.42x = 107,280,115.16
  5. Step 5: Solve for x
    x = 107,280,115.16/13,210.42
  6. Step 6: Final answer
    x = 8,120.87

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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.