Home / 8,270.97-11,415.75-5,087.01

Finding the Fourth Proportional to 8,270.97, 11,415.75 and 5,087.01

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Solution

The fourth proportional to 8,270.97, 11,415.75 and 5,087.01 is: 7,021.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.97 : 11,415.75 = 5,087.01 : x
  2. Step 2: Convert to fraction form
    8,270.97/11,415.75 = 5,087.01/x
  3. Step 3: Cross multiply
    8,270.97x = 11,415.75 × 5,087.01
  4. Step 4: Simplify right side
    8,270.97x = 58,072,034.41
  5. Step 5: Solve for x
    x = 58,072,034.41/8,270.97
  6. Step 6: Final answer
    x = 7,021.19

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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.