Home / 11,163.45-15,403.40-7,184.03

Finding the Fourth Proportional to 11,163.45, 15,403.40 and 7,184.03

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Solution

The fourth proportional to 11,163.45, 15,403.40 and 7,184.03 is: 9,912.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.45 : 15,403.40 = 7,184.03 : x
  2. Step 2: Convert to fraction form
    11,163.45/15,403.40 = 7,184.03/x
  3. Step 3: Cross multiply
    11,163.45x = 15,403.40 × 7,184.03
  4. Step 4: Simplify right side
    11,163.45x = 110,658,401.70
  5. Step 5: Solve for x
    x = 110,658,401.70/11,163.45
  6. Step 6: Final answer
    x = 9,912.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.