Home / 13,201.68-18,218.40-7,233.88

Finding the Fourth Proportional to 13,201.68, 18,218.40 and 7,233.88

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Solution

The fourth proportional to 13,201.68, 18,218.40 and 7,233.88 is: 9,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.68 : 18,218.40 = 7,233.88 : x
  2. Step 2: Convert to fraction form
    13,201.68/18,218.40 = 7,233.88/x
  3. Step 3: Cross multiply
    13,201.68x = 18,218.40 × 7,233.88
  4. Step 4: Simplify right side
    13,201.68x = 131,789,719.39
  5. Step 5: Solve for x
    x = 131,789,719.39/13,201.68
  6. Step 6: Final answer
    x = 9,982.80

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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.