Home / 19,740.90-27,233.68-11,778.49

Finding the Fourth Proportional to 19,740.90, 27,233.68 and 11,778.49

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Solution

The fourth proportional to 19,740.90, 27,233.68 and 11,778.49 is: 16,249.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.90 : 27,233.68 = 11,778.49 : x
  2. Step 2: Convert to fraction form
    19,740.90/27,233.68 = 11,778.49/x
  3. Step 3: Cross multiply
    19,740.90x = 27,233.68 × 11,778.49
  4. Step 4: Simplify right side
    19,740.90x = 320,771,627.54
  5. Step 5: Solve for x
    x = 320,771,627.54/19,740.90
  6. Step 6: Final answer
    x = 16,249.09

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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.