Home / 9,605.40-13,255.44-5,413.68

Finding the Fourth Proportional to 9,605.40, 13,255.44 and 5,413.68

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Solution

The fourth proportional to 9,605.40, 13,255.44 and 5,413.68 is: 7,470.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,605.40 : 13,255.44 = 5,413.68 : x
  2. Step 2: Convert to fraction form
    9,605.40/13,255.44 = 5,413.68/x
  3. Step 3: Cross multiply
    9,605.40x = 13,255.44 × 5,413.68
  4. Step 4: Simplify right side
    9,605.40x = 71,760,710.42
  5. Step 5: Solve for x
    x = 71,760,710.42/9,605.40
  6. Step 6: Final answer
    x = 7,470.87

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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.