Home / 7,342.51-11,013.96-2,148.38

Finding the Fourth Proportional to 7,342.51, 11,013.96 and 2,148.38

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Solution

The fourth proportional to 7,342.51, 11,013.96 and 2,148.38 is: 3,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.51 : 11,013.96 = 2,148.38 : x
  2. Step 2: Convert to fraction form
    7,342.51/11,013.96 = 2,148.38/x
  3. Step 3: Cross multiply
    7,342.51x = 11,013.96 × 2,148.38
  4. Step 4: Simplify right side
    7,342.51x = 23,662,171.38
  5. Step 5: Solve for x
    x = 23,662,171.38/7,342.51
  6. Step 6: Final answer
    x = 3,222.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.