Home / 10,356.75-15,537.60-3,431.25

Finding the Fourth Proportional to 10,356.75, 15,537.60 and 3,431.25

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Solution

The fourth proportional to 10,356.75, 15,537.60 and 3,431.25 is: 5,147.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,356.75 : 15,537.60 = 3,431.25 : x
  2. Step 2: Convert to fraction form
    10,356.75/15,537.60 = 3,431.25/x
  3. Step 3: Cross multiply
    10,356.75x = 15,537.60 × 3,431.25
  4. Step 4: Simplify right side
    10,356.75x = 53,313,390
  5. Step 5: Solve for x
    x = 53,313,390/10,356.75
  6. Step 6: Final answer
    x = 5,147.69

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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.