Home / 7,455.78-11,163.72-3,938.52

Finding the Fourth Proportional to 7,455.78, 11,163.72 and 3,938.52

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Solution

The fourth proportional to 7,455.78, 11,163.72 and 3,938.52 is: 5,897.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,455.78 : 11,163.72 = 3,938.52 : x
  2. Step 2: Convert to fraction form
    7,455.78/11,163.72 = 3,938.52/x
  3. Step 3: Cross multiply
    7,455.78x = 11,163.72 × 3,938.52
  4. Step 4: Simplify right side
    7,455.78x = 43,968,534.49
  5. Step 5: Solve for x
    x = 43,968,534.49/7,455.78
  6. Step 6: Final answer
    x = 5,897.24

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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.