Home / 12,413.78-18,613.91-6,160.04

Finding the Fourth Proportional to 12,413.78, 18,613.91 and 6,160.04

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Solution

The fourth proportional to 12,413.78, 18,613.91 and 6,160.04 is: 9,236.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,413.78 : 18,613.91 = 6,160.04 : x
  2. Step 2: Convert to fraction form
    12,413.78/18,613.91 = 6,160.04/x
  3. Step 3: Cross multiply
    12,413.78x = 18,613.91 × 6,160.04
  4. Step 4: Simplify right side
    12,413.78x = 114,662,352.49
  5. Step 5: Solve for x
    x = 114,662,352.49/12,413.78
  6. Step 6: Final answer
    x = 9,236.70

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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.