Home / 11,131.60-15,356.82-6,413.08

Finding the Fourth Proportional to 11,131.60, 15,356.82 and 6,413.08

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Solution

The fourth proportional to 11,131.60, 15,356.82 and 6,413.08 is: 8,847.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.60 : 15,356.82 = 6,413.08 : x
  2. Step 2: Convert to fraction form
    11,131.60/15,356.82 = 6,413.08/x
  3. Step 3: Cross multiply
    11,131.60x = 15,356.82 × 6,413.08
  4. Step 4: Simplify right side
    11,131.60x = 98,484,515.21
  5. Step 5: Solve for x
    x = 98,484,515.21/11,131.60
  6. Step 6: Final answer
    x = 8,847.29

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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.