Home / 9,131.08-13,696.64-2,205.58

Finding the Fourth Proportional to 9,131.08, 13,696.64 and 2,205.58

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Solution

The fourth proportional to 9,131.08, 13,696.64 and 2,205.58 is: 3,308.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.08 : 13,696.64 = 2,205.58 : x
  2. Step 2: Convert to fraction form
    9,131.08/13,696.64 = 2,205.58/x
  3. Step 3: Cross multiply
    9,131.08x = 13,696.64 × 2,205.58
  4. Step 4: Simplify right side
    9,131.08x = 30,209,035.25
  5. Step 5: Solve for x
    x = 30,209,035.25/9,131.08
  6. Step 6: Final answer
    x = 3,308.37

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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.