Home / 12,413.18-18,619.77-3,648.09

Finding the Fourth Proportional to 12,413.18, 18,619.77 and 3,648.09

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Solution

The fourth proportional to 12,413.18, 18,619.77 and 3,648.09 is: 5,472.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,413.18 : 18,619.77 = 3,648.09 : x
  2. Step 2: Convert to fraction form
    12,413.18/18,619.77 = 3,648.09/x
  3. Step 3: Cross multiply
    12,413.18x = 18,619.77 × 3,648.09
  4. Step 4: Simplify right side
    12,413.18x = 67,926,659.72
  5. Step 5: Solve for x
    x = 67,926,659.72/12,413.18
  6. Step 6: Final answer
    x = 5,472.14

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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.