Home / 11,271.22-15,551.49-7,287.54

Finding the Fourth Proportional to 11,271.22, 15,551.49 and 7,287.54

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Solution

The fourth proportional to 11,271.22, 15,551.49 and 7,287.54 is: 10,055.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,271.22 : 15,551.49 = 7,287.54 : x
  2. Step 2: Convert to fraction form
    11,271.22/15,551.49 = 7,287.54/x
  3. Step 3: Cross multiply
    11,271.22x = 15,551.49 × 7,287.54
  4. Step 4: Simplify right side
    11,271.22x = 113,332,087.44
  5. Step 5: Solve for x
    x = 113,332,087.44/11,271.22
  6. Step 6: Final answer
    x = 10,055.00

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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.