Home / 19,764.99-27,278.30-11,270.18

Finding the Fourth Proportional to 19,764.99, 27,278.30 and 11,270.18

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Solution

The fourth proportional to 19,764.99, 27,278.30 and 11,270.18 is: 15,554.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,764.99 : 27,278.30 = 11,270.18 : x
  2. Step 2: Convert to fraction form
    19,764.99/27,278.30 = 11,270.18/x
  3. Step 3: Cross multiply
    19,764.99x = 27,278.30 × 11,270.18
  4. Step 4: Simplify right side
    19,764.99x = 307,431,351.09
  5. Step 5: Solve for x
    x = 307,431,351.09/19,764.99
  6. Step 6: Final answer
    x = 15,554.34

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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.