Home / 9,109.82-13,653.66-4,939.94

Finding the Fourth Proportional to 9,109.82, 13,653.66 and 4,939.94

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Solution

The fourth proportional to 9,109.82, 13,653.66 and 4,939.94 is: 7,403.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.82 : 13,653.66 = 4,939.94 : x
  2. Step 2: Convert to fraction form
    9,109.82/13,653.66 = 4,939.94/x
  3. Step 3: Cross multiply
    9,109.82x = 13,653.66 × 4,939.94
  4. Step 4: Simplify right side
    9,109.82x = 67,448,261.18
  5. Step 5: Solve for x
    x = 67,448,261.18/9,109.82
  6. Step 6: Final answer
    x = 7,403.91

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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.