Home / 9,605.72-13,255.44-5,413.88

Finding the Fourth Proportional to 9,605.72, 13,255.44 and 5,413.88

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Solution

The fourth proportional to 9,605.72, 13,255.44 and 5,413.88 is: 7,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,605.72 : 13,255.44 = 5,413.88 : x
  2. Step 2: Convert to fraction form
    9,605.72/13,255.44 = 5,413.88/x
  3. Step 3: Cross multiply
    9,605.72x = 13,255.44 × 5,413.88
  4. Step 4: Simplify right side
    9,605.72x = 71,763,361.51
  5. Step 5: Solve for x
    x = 71,763,361.51/9,605.72
  6. Step 6: Final answer
    x = 7,470.90

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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.