Home / 11,091.97-15,323.62-7,272.68

Finding the Fourth Proportional to 11,091.97, 15,323.62 and 7,272.68

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Solution

The fourth proportional to 11,091.97, 15,323.62 and 7,272.68 is: 10,047.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,091.97 : 15,323.62 = 7,272.68 : x
  2. Step 2: Convert to fraction form
    11,091.97/15,323.62 = 7,272.68/x
  3. Step 3: Cross multiply
    11,091.97x = 15,323.62 × 7,272.68
  4. Step 4: Simplify right side
    11,091.97x = 111,443,784.70
  5. Step 5: Solve for x
    x = 111,443,784.70/11,091.97
  6. Step 6: Final answer
    x = 10,047.25

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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.