Home / 13,659.06-18,846.15-8,351.94

Finding the Fourth Proportional to 13,659.06, 18,846.15 and 8,351.94

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Solution

The fourth proportional to 13,659.06, 18,846.15 and 8,351.94 is: 11,523.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.06 : 18,846.15 = 8,351.94 : x
  2. Step 2: Convert to fraction form
    13,659.06/18,846.15 = 8,351.94/x
  3. Step 3: Cross multiply
    13,659.06x = 18,846.15 × 8,351.94
  4. Step 4: Simplify right side
    13,659.06x = 157,401,914.03
  5. Step 5: Solve for x
    x = 157,401,914.03/13,659.06
  6. Step 6: Final answer
    x = 11,523.63

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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.