Home / 10,218.89-15,328.99-2,722.33

Finding the Fourth Proportional to 10,218.89, 15,328.99 and 2,722.33

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Solution

The fourth proportional to 10,218.89, 15,328.99 and 2,722.33 is: 4,083.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.89 : 15,328.99 = 2,722.33 : x
  2. Step 2: Convert to fraction form
    10,218.89/15,328.99 = 2,722.33/x
  3. Step 3: Cross multiply
    10,218.89x = 15,328.99 × 2,722.33
  4. Step 4: Simplify right side
    10,218.89x = 41,730,479.09
  5. Step 5: Solve for x
    x = 41,730,479.09/10,218.89
  6. Step 6: Final answer
    x = 4,083.66

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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.