Home / 11,324.67-16,981.51-4,749.09

Finding the Fourth Proportional to 11,324.67, 16,981.51 and 4,749.09

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Solution

The fourth proportional to 11,324.67, 16,981.51 and 4,749.09 is: 7,121.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,324.67 : 16,981.51 = 4,749.09 : x
  2. Step 2: Convert to fraction form
    11,324.67/16,981.51 = 4,749.09/x
  3. Step 3: Cross multiply
    11,324.67x = 16,981.51 × 4,749.09
  4. Step 4: Simplify right side
    11,324.67x = 80,646,719.33
  5. Step 5: Solve for x
    x = 80,646,719.33/11,324.67
  6. Step 6: Final answer
    x = 7,121.33

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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.