Home / 11,125.86-15,357.11-6,413.28

Finding the Fourth Proportional to 11,125.86, 15,357.11 and 6,413.28

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Solution

The fourth proportional to 11,125.86, 15,357.11 and 6,413.28 is: 8,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.86 : 15,357.11 = 6,413.28 : x
  2. Step 2: Convert to fraction form
    11,125.86/15,357.11 = 6,413.28/x
  3. Step 3: Cross multiply
    11,125.86x = 15,357.11 × 6,413.28
  4. Step 4: Simplify right side
    11,125.86x = 98,489,414.35
  5. Step 5: Solve for x
    x = 98,489,414.35/11,125.86
  6. Step 6: Final answer
    x = 8,852.30

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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.