Home / 13,201.81-18,218.49-7,233.69

Finding the Fourth Proportional to 13,201.81, 18,218.49 and 7,233.69

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Solution

The fourth proportional to 13,201.81, 18,218.49 and 7,233.69 is: 9,982.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.81 : 18,218.49 = 7,233.69 : x
  2. Step 2: Convert to fraction form
    13,201.81/18,218.49 = 7,233.69/x
  3. Step 3: Cross multiply
    13,201.81x = 18,218.49 × 7,233.69
  4. Step 4: Simplify right side
    13,201.81x = 131,786,908.93
  5. Step 5: Solve for x
    x = 131,786,908.93/13,201.81
  6. Step 6: Final answer
    x = 9,982.49

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Half scale
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Double scale
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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.