Home / 13,318.22-19,977.13-7,704.33

Finding the Fourth Proportional to 13,318.22, 19,977.13 and 7,704.33

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Solution

The fourth proportional to 13,318.22, 19,977.13 and 7,704.33 is: 11,556.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.22 : 19,977.13 = 7,704.33 : x
  2. Step 2: Convert to fraction form
    13,318.22/19,977.13 = 7,704.33/x
  3. Step 3: Cross multiply
    13,318.22x = 19,977.13 × 7,704.33
  4. Step 4: Simplify right side
    13,318.22x = 153,910,401.97
  5. Step 5: Solve for x
    x = 153,910,401.97/13,318.22
  6. Step 6: Final answer
    x = 11,556.38

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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.