Home / 9,218.62-12,721.83-5,239.82

Finding the Fourth Proportional to 9,218.62, 12,721.83 and 5,239.82

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Solution

The fourth proportional to 9,218.62, 12,721.83 and 5,239.82 is: 7,231.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,218.62 : 12,721.83 = 5,239.82 : x
  2. Step 2: Convert to fraction form
    9,218.62/12,721.83 = 5,239.82/x
  3. Step 3: Cross multiply
    9,218.62x = 12,721.83 × 5,239.82
  4. Step 4: Simplify right side
    9,218.62x = 66,660,099.27
  5. Step 5: Solve for x
    x = 66,660,099.27/9,218.62
  6. Step 6: Final answer
    x = 7,231.03

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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.