Home / 11,713.20-16,163.28-6,408.06

Finding the Fourth Proportional to 11,713.20, 16,163.28 and 6,408.06

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Solution

The fourth proportional to 11,713.20, 16,163.28 and 6,408.06 is: 8,842.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,713.20 : 16,163.28 = 6,408.06 : x
  2. Step 2: Convert to fraction form
    11,713.20/16,163.28 = 6,408.06/x
  3. Step 3: Cross multiply
    11,713.20x = 16,163.28 × 6,408.06
  4. Step 4: Simplify right side
    11,713.20x = 103,575,268.04
  5. Step 5: Solve for x
    x = 103,575,268.04/11,713.20
  6. Step 6: Final answer
    x = 8,842.61

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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.