Home / 11,619.44-17,418-7,447.76

Finding the Fourth Proportional to 11,619.44, 17,418 and 7,447.76

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Solution

The fourth proportional to 11,619.44, 17,418 and 7,447.76 is: 11,164.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.44 : 17,418 = 7,447.76 : x
  2. Step 2: Convert to fraction form
    11,619.44/17,418 = 7,447.76/x
  3. Step 3: Cross multiply
    11,619.44x = 17,418 × 7,447.76
  4. Step 4: Simplify right side
    11,619.44x = 129,725,083.68
  5. Step 5: Solve for x
    x = 129,725,083.68/11,619.44
  6. Step 6: Final answer
    x = 11,164.49

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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.