Home / 10,153.44-15,231.40-3,578.28

Finding the Fourth Proportional to 10,153.44, 15,231.40 and 3,578.28

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Solution

The fourth proportional to 10,153.44, 15,231.40 and 3,578.28 is: 5,367.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,153.44 : 15,231.40 = 3,578.28 : x
  2. Step 2: Convert to fraction form
    10,153.44/15,231.40 = 3,578.28/x
  3. Step 3: Cross multiply
    10,153.44x = 15,231.40 × 3,578.28
  4. Step 4: Simplify right side
    10,153.44x = 54,502,213.99
  5. Step 5: Solve for x
    x = 54,502,213.99/10,153.44
  6. Step 6: Final answer
    x = 5,367.86

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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.