Home / 11,213.39-15,474.39-6,739.61

Finding the Fourth Proportional to 11,213.39, 15,474.39 and 6,739.61

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Solution

The fourth proportional to 11,213.39, 15,474.39 and 6,739.61 is: 9,300.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.39 : 15,474.39 = 6,739.61 : x
  2. Step 2: Convert to fraction form
    11,213.39/15,474.39 = 6,739.61/x
  3. Step 3: Cross multiply
    11,213.39x = 15,474.39 × 6,739.61
  4. Step 4: Simplify right side
    11,213.39x = 104,291,288.85
  5. Step 5: Solve for x
    x = 104,291,288.85/11,213.39
  6. Step 6: Final answer
    x = 9,300.61

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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.