Home / 8,413.50-12,618.63-2,866.80

Finding the Fourth Proportional to 8,413.50, 12,618.63 and 2,866.80

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Solution

The fourth proportional to 8,413.50, 12,618.63 and 2,866.80 is: 4,299.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,413.50 : 12,618.63 = 2,866.80 : x
  2. Step 2: Convert to fraction form
    8,413.50/12,618.63 = 2,866.80/x
  3. Step 3: Cross multiply
    8,413.50x = 12,618.63 × 2,866.80
  4. Step 4: Simplify right side
    8,413.50x = 36,175,088.48
  5. Step 5: Solve for x
    x = 36,175,088.48/8,413.50
  6. Step 6: Final answer
    x = 4,299.65

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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.