Home / 8,413.85-11,611.19-4,637.15

Finding the Fourth Proportional to 8,413.85, 11,611.19 and 4,637.15

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Solution

The fourth proportional to 8,413.85, 11,611.19 and 4,637.15 is: 6,399.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,413.85 : 11,611.19 = 4,637.15 : x
  2. Step 2: Convert to fraction form
    8,413.85/11,611.19 = 4,637.15/x
  3. Step 3: Cross multiply
    8,413.85x = 11,611.19 × 4,637.15
  4. Step 4: Simplify right side
    8,413.85x = 53,842,809.40
  5. Step 5: Solve for x
    x = 53,842,809.40/8,413.85
  6. Step 6: Final answer
    x = 6,399.31

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Half scale
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Double scale
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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.