Home / 10,212.57-15,315.62-3,636.99

Finding the Fourth Proportional to 10,212.57, 15,315.62 and 3,636.99

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Solution

The fourth proportional to 10,212.57, 15,315.62 and 3,636.99 is: 5,454.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,212.57 : 15,315.62 = 3,636.99 : x
  2. Step 2: Convert to fraction form
    10,212.57/15,315.62 = 3,636.99/x
  3. Step 3: Cross multiply
    10,212.57x = 15,315.62 × 3,636.99
  4. Step 4: Simplify right side
    10,212.57x = 55,702,738.60
  5. Step 5: Solve for x
    x = 55,702,738.60/10,212.57
  6. Step 6: Final answer
    x = 5,454.33

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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.