Home / 7,431.54-11,161.20-6,542.39

Finding the Fourth Proportional to 7,431.54, 11,161.20 and 6,542.39

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Solution

The fourth proportional to 7,431.54, 11,161.20 and 6,542.39 is: 9,825.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.54 : 11,161.20 = 6,542.39 : x
  2. Step 2: Convert to fraction form
    7,431.54/11,161.20 = 6,542.39/x
  3. Step 3: Cross multiply
    7,431.54x = 11,161.20 × 6,542.39
  4. Step 4: Simplify right side
    7,431.54x = 73,020,923.27
  5. Step 5: Solve for x
    x = 73,020,923.27/7,431.54
  6. Step 6: Final answer
    x = 9,825.81

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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.