Home / 13,223.19-18,249.62-7,556.64

Finding the Fourth Proportional to 13,223.19, 18,249.62 and 7,556.64

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Solution

The fourth proportional to 13,223.19, 18,249.62 and 7,556.64 is: 10,429.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.19 : 18,249.62 = 7,556.64 : x
  2. Step 2: Convert to fraction form
    13,223.19/18,249.62 = 7,556.64/x
  3. Step 3: Cross multiply
    13,223.19x = 18,249.62 × 7,556.64
  4. Step 4: Simplify right side
    13,223.19x = 137,905,770.69
  5. Step 5: Solve for x
    x = 137,905,770.69/13,223.19
  6. Step 6: Final answer
    x = 10,429.08

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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.