Home / 19,790.79-27,313.35-11,729.25

Finding the Fourth Proportional to 19,790.79, 27,313.35 and 11,729.25

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Solution

The fourth proportional to 19,790.79, 27,313.35 and 11,729.25 is: 16,187.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.79 : 27,313.35 = 11,729.25 : x
  2. Step 2: Convert to fraction form
    19,790.79/27,313.35 = 11,729.25/x
  3. Step 3: Cross multiply
    19,790.79x = 27,313.35 × 11,729.25
  4. Step 4: Simplify right side
    19,790.79x = 320,365,110.49
  5. Step 5: Solve for x
    x = 320,365,110.49/19,790.79
  6. Step 6: Final answer
    x = 16,187.59

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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.