Home / 10,489.09-15,736.37-3,915.33

Finding the Fourth Proportional to 10,489.09, 15,736.37 and 3,915.33

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Solution

The fourth proportional to 10,489.09, 15,736.37 and 3,915.33 is: 5,874.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.09 : 15,736.37 = 3,915.33 : x
  2. Step 2: Convert to fraction form
    10,489.09/15,736.37 = 3,915.33/x
  3. Step 3: Cross multiply
    10,489.09x = 15,736.37 × 3,915.33
  4. Step 4: Simplify right side
    10,489.09x = 61,613,042.21
  5. Step 5: Solve for x
    x = 61,613,042.21/10,489.09
  6. Step 6: Final answer
    x = 5,874.01

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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.