Home / 9,133.57-13,699.09-3,938.77

Finding the Fourth Proportional to 9,133.57, 13,699.09 and 3,938.77

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Solution

The fourth proportional to 9,133.57, 13,699.09 and 3,938.77 is: 5,907.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,133.57 : 13,699.09 = 3,938.77 : x
  2. Step 2: Convert to fraction form
    9,133.57/13,699.09 = 3,938.77/x
  3. Step 3: Cross multiply
    9,133.57x = 13,699.09 × 3,938.77
  4. Step 4: Simplify right side
    9,133.57x = 53,957,564.72
  5. Step 5: Solve for x
    x = 53,957,564.72/9,133.57
  6. Step 6: Final answer
    x = 5,907.61

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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.