Home / 19,768.22-27,279.90-11,270.07

Finding the Fourth Proportional to 19,768.22, 27,279.90 and 11,270.07

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Solution

The fourth proportional to 19,768.22, 27,279.90 and 11,270.07 is: 15,552.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,768.22 : 27,279.90 = 11,270.07 : x
  2. Step 2: Convert to fraction form
    19,768.22/27,279.90 = 11,270.07/x
  3. Step 3: Cross multiply
    19,768.22x = 27,279.90 × 11,270.07
  4. Step 4: Simplify right side
    19,768.22x = 307,446,382.59
  5. Step 5: Solve for x
    x = 307,446,382.59/19,768.22
  6. Step 6: Final answer
    x = 15,552.56

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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.