Home / 9,375.09-12,911.36-9,170.97

Finding the Fourth Proportional to 9,375.09, 12,911.36 and 9,170.97

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Solution

The fourth proportional to 9,375.09, 12,911.36 and 9,170.97 is: 12,630.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,375.09 : 12,911.36 = 9,170.97 : x
  2. Step 2: Convert to fraction form
    9,375.09/12,911.36 = 9,170.97/x
  3. Step 3: Cross multiply
    9,375.09x = 12,911.36 × 9,170.97
  4. Step 4: Simplify right side
    9,375.09x = 118,409,653.59
  5. Step 5: Solve for x
    x = 118,409,653.59/9,375.09
  6. Step 6: Final answer
    x = 12,630.25

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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.