Home / 19,737.78-27,233.55-11,778.42

Finding the Fourth Proportional to 19,737.78, 27,233.55 and 11,778.42

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Solution

The fourth proportional to 19,737.78, 27,233.55 and 11,778.42 is: 16,251.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,737.78 : 27,233.55 = 11,778.42 : x
  2. Step 2: Convert to fraction form
    19,737.78/27,233.55 = 11,778.42/x
  3. Step 3: Cross multiply
    19,737.78x = 27,233.55 × 11,778.42
  4. Step 4: Simplify right side
    19,737.78x = 320,768,189.99
  5. Step 5: Solve for x
    x = 320,768,189.99/19,737.78
  6. Step 6: Final answer
    x = 16,251.48

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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.