Home / 13,201.74-18,218.55-7,233.42

Finding the Fourth Proportional to 13,201.74, 18,218.55 and 7,233.42

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Solution

The fourth proportional to 13,201.74, 18,218.55 and 7,233.42 is: 9,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.74 : 18,218.55 = 7,233.42 : x
  2. Step 2: Convert to fraction form
    13,201.74/18,218.55 = 7,233.42/x
  3. Step 3: Cross multiply
    13,201.74x = 18,218.55 × 7,233.42
  4. Step 4: Simplify right side
    13,201.74x = 131,782,423.94
  5. Step 5: Solve for x
    x = 131,782,423.94/13,201.74
  6. Step 6: Final answer
    x = 9,982.20

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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.