Home / 10,205.10-15,304.60-3,629.78

Finding the Fourth Proportional to 10,205.10, 15,304.60 and 3,629.78

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Solution

The fourth proportional to 10,205.10, 15,304.60 and 3,629.78 is: 5,443.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,205.10 : 15,304.60 = 3,629.78 : x
  2. Step 2: Convert to fraction form
    10,205.10/15,304.60 = 3,629.78/x
  3. Step 3: Cross multiply
    10,205.10x = 15,304.60 × 3,629.78
  4. Step 4: Simplify right side
    10,205.10x = 55,552,330.99
  5. Step 5: Solve for x
    x = 55,552,330.99/10,205.10
  6. Step 6: Final answer
    x = 5,443.59

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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.