Home / 7,923.17-11,890.73-5,418.37

Finding the Fourth Proportional to 7,923.17, 11,890.73 and 5,418.37

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Solution

The fourth proportional to 7,923.17, 11,890.73 and 5,418.37 is: 8,131.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.17 : 11,890.73 = 5,418.37 : x
  2. Step 2: Convert to fraction form
    7,923.17/11,890.73 = 5,418.37/x
  3. Step 3: Cross multiply
    7,923.17x = 11,890.73 × 5,418.37
  4. Step 4: Simplify right side
    7,923.17x = 64,428,403.12
  5. Step 5: Solve for x
    x = 64,428,403.12/7,923.17
  6. Step 6: Final answer
    x = 8,131.64

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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.