Home / 11,128.59-15,358.19-6,413.18

Finding the Fourth Proportional to 11,128.59, 15,358.19 and 6,413.18

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Solution

The fourth proportional to 11,128.59, 15,358.19 and 6,413.18 is: 8,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.59 : 15,358.19 = 6,413.18 : x
  2. Step 2: Convert to fraction form
    11,128.59/15,358.19 = 6,413.18/x
  3. Step 3: Cross multiply
    11,128.59x = 15,358.19 × 6,413.18
  4. Step 4: Simplify right side
    11,128.59x = 98,494,728.09
  5. Step 5: Solve for x
    x = 98,494,728.09/11,128.59
  6. Step 6: Final answer
    x = 8,850.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.