Home / 10,629.88-15,945.36-3,610.72

Finding the Fourth Proportional to 10,629.88, 15,945.36 and 3,610.72

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Solution

The fourth proportional to 10,629.88, 15,945.36 and 3,610.72 is: 5,416.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.88 : 15,945.36 = 3,610.72 : x
  2. Step 2: Convert to fraction form
    10,629.88/15,945.36 = 3,610.72/x
  3. Step 3: Cross multiply
    10,629.88x = 15,945.36 × 3,610.72
  4. Step 4: Simplify right side
    10,629.88x = 57,574,230.26
  5. Step 5: Solve for x
    x = 57,574,230.26/10,629.88
  6. Step 6: Final answer
    x = 5,416.26

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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.