Home / 13,608.77-20,415.54-6,213.97

Finding the Fourth Proportional to 13,608.77, 20,415.54 and 6,213.97

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Solution

The fourth proportional to 13,608.77, 20,415.54 and 6,213.97 is: 9,322.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.77 : 20,415.54 = 6,213.97 : x
  2. Step 2: Convert to fraction form
    13,608.77/20,415.54 = 6,213.97/x
  3. Step 3: Cross multiply
    13,608.77x = 20,415.54 × 6,213.97
  4. Step 4: Simplify right side
    13,608.77x = 126,861,566.96
  5. Step 5: Solve for x
    x = 126,861,566.96/13,608.77
  6. Step 6: Final answer
    x = 9,322.05

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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.