Home / 13,617.39-20,413.77-9,459.35

Finding the Fourth Proportional to 13,617.39, 20,413.77 and 9,459.35

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Solution

The fourth proportional to 13,617.39, 20,413.77 and 9,459.35 is: 14,180.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.39 : 20,413.77 = 9,459.35 : x
  2. Step 2: Convert to fraction form
    13,617.39/20,413.77 = 9,459.35/x
  3. Step 3: Cross multiply
    13,617.39x = 20,413.77 × 9,459.35
  4. Step 4: Simplify right side
    13,617.39x = 193,100,995.25
  5. Step 5: Solve for x
    x = 193,100,995.25/13,617.39
  6. Step 6: Final answer
    x = 14,180.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.