Home / 10,245.67-15,351.81-3,998.59

Finding the Fourth Proportional to 10,245.67, 15,351.81 and 3,998.59

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Solution

The fourth proportional to 10,245.67, 15,351.81 and 3,998.59 is: 5,991.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,245.67 : 15,351.81 = 3,998.59 : x
  2. Step 2: Convert to fraction form
    10,245.67/15,351.81 = 3,998.59/x
  3. Step 3: Cross multiply
    10,245.67x = 15,351.81 × 3,998.59
  4. Step 4: Simplify right side
    10,245.67x = 61,385,593.95
  5. Step 5: Solve for x
    x = 61,385,593.95/10,245.67
  6. Step 6: Final answer
    x = 5,991.37

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1.5x scale

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.