Home / 10,161.47-15,239.93-3,919.41

Finding the Fourth Proportional to 10,161.47, 15,239.93 and 3,919.41

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Solution

The fourth proportional to 10,161.47, 15,239.93 and 3,919.41 is: 5,878.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,161.47 : 15,239.93 = 3,919.41 : x
  2. Step 2: Convert to fraction form
    10,161.47/15,239.93 = 3,919.41/x
  3. Step 3: Cross multiply
    10,161.47x = 15,239.93 × 3,919.41
  4. Step 4: Simplify right side
    10,161.47x = 59,731,514.44
  5. Step 5: Solve for x
    x = 59,731,514.44/10,161.47
  6. Step 6: Final answer
    x = 5,878.23

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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.