Home / 12,340.33-18,413.57-11,587.18

Finding the Fourth Proportional to 12,340.33, 18,413.57 and 11,587.18

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Solution

The fourth proportional to 12,340.33, 18,413.57 and 11,587.18 is: 17,289.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.33 : 18,413.57 = 11,587.18 : x
  2. Step 2: Convert to fraction form
    12,340.33/18,413.57 = 11,587.18/x
  3. Step 3: Cross multiply
    12,340.33x = 18,413.57 × 11,587.18
  4. Step 4: Simplify right side
    12,340.33x = 213,361,350.03
  5. Step 5: Solve for x
    x = 213,361,350.03/12,340.33
  6. Step 6: Final answer
    x = 17,289.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.