Home / 10,275.75-15,413.67-4,119.75

Finding the Fourth Proportional to 10,275.75, 15,413.67 and 4,119.75

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Solution

The fourth proportional to 10,275.75, 15,413.67 and 4,119.75 is: 6,179.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,275.75 : 15,413.67 = 4,119.75 : x
  2. Step 2: Convert to fraction form
    10,275.75/15,413.67 = 4,119.75/x
  3. Step 3: Cross multiply
    10,275.75x = 15,413.67 × 4,119.75
  4. Step 4: Simplify right side
    10,275.75x = 63,500,466.98
  5. Step 5: Solve for x
    x = 63,500,466.98/10,275.75
  6. Step 6: Final answer
    x = 6,179.64

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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.