Home / 11,923.88-16,447.48-7,680.44

Finding the Fourth Proportional to 11,923.88, 16,447.48 and 7,680.44

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Solution

The fourth proportional to 11,923.88, 16,447.48 and 7,680.44 is: 10,594.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,923.88 : 16,447.48 = 7,680.44 : x
  2. Step 2: Convert to fraction form
    11,923.88/16,447.48 = 7,680.44/x
  3. Step 3: Cross multiply
    11,923.88x = 16,447.48 × 7,680.44
  4. Step 4: Simplify right side
    11,923.88x = 126,323,883.29
  5. Step 5: Solve for x
    x = 126,323,883.29/11,923.88
  6. Step 6: Final answer
    x = 10,594.19

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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.