Home / 13,613.16-20,413.62-6,215.88

Finding the Fourth Proportional to 13,613.16, 20,413.62 and 6,215.88

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Solution

The fourth proportional to 13,613.16, 20,413.62 and 6,215.88 is: 9,321.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.16 : 20,413.62 = 6,215.88 : x
  2. Step 2: Convert to fraction form
    13,613.16/20,413.62 = 6,215.88/x
  3. Step 3: Cross multiply
    13,613.16x = 20,413.62 × 6,215.88
  4. Step 4: Simplify right side
    13,613.16x = 126,888,612.29
  5. Step 5: Solve for x
    x = 126,888,612.29/13,613.16
  6. Step 6: Final answer
    x = 9,321.03

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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.