Home / 10,131.65-15,199.73-3,112.37

Finding the Fourth Proportional to 10,131.65, 15,199.73 and 3,112.37

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Solution

The fourth proportional to 10,131.65, 15,199.73 and 3,112.37 is: 4,669.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.65 : 15,199.73 = 3,112.37 : x
  2. Step 2: Convert to fraction form
    10,131.65/15,199.73 = 3,112.37/x
  3. Step 3: Cross multiply
    10,131.65x = 15,199.73 × 3,112.37
  4. Step 4: Simplify right side
    10,131.65x = 47,307,183.66
  5. Step 5: Solve for x
    x = 47,307,183.66/10,131.65
  6. Step 6: Final answer
    x = 4,669.25

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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.