Home / 10,170.09-15,256.35-3,504.78

Finding the Fourth Proportional to 10,170.09, 15,256.35 and 3,504.78

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Solution

The fourth proportional to 10,170.09, 15,256.35 and 3,504.78 is: 5,257.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,170.09 : 15,256.35 = 3,504.78 : x
  2. Step 2: Convert to fraction form
    10,170.09/15,256.35 = 3,504.78/x
  3. Step 3: Cross multiply
    10,170.09x = 15,256.35 × 3,504.78
  4. Step 4: Simplify right side
    10,170.09x = 53,470,150.35
  5. Step 5: Solve for x
    x = 53,470,150.35/10,170.09
  6. Step 6: Final answer
    x = 5,257.59

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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.