Home / 8,218.33-11,343.41-5,072.71

Finding the Fourth Proportional to 8,218.33, 11,343.41 and 5,072.71

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Solution

The fourth proportional to 8,218.33, 11,343.41 and 5,072.71 is: 7,001.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.33 : 11,343.41 = 5,072.71 : x
  2. Step 2: Convert to fraction form
    8,218.33/11,343.41 = 5,072.71/x
  3. Step 3: Cross multiply
    8,218.33x = 11,343.41 × 5,072.71
  4. Step 4: Simplify right side
    8,218.33x = 57,541,803.98
  5. Step 5: Solve for x
    x = 57,541,803.98/8,218.33
  6. Step 6: Final answer
    x = 7,001.64

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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.