Home / 11,790.55-16,270.23-7,077.43

Finding the Fourth Proportional to 11,790.55, 16,270.23 and 7,077.43

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Solution

The fourth proportional to 11,790.55, 16,270.23 and 7,077.43 is: 9,766.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.55 : 16,270.23 = 7,077.43 : x
  2. Step 2: Convert to fraction form
    11,790.55/16,270.23 = 7,077.43/x
  3. Step 3: Cross multiply
    11,790.55x = 16,270.23 × 7,077.43
  4. Step 4: Simplify right side
    11,790.55x = 115,151,413.91
  5. Step 5: Solve for x
    x = 115,151,413.91/11,790.55
  6. Step 6: Final answer
    x = 9,766.42

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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.