Home / 20,119.12-27,764.00-11,166.73

Finding the Fourth Proportional to 20,119.12, 27,764.00 and 11,166.73

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Solution

The fourth proportional to 20,119.12, 27,764.00 and 11,166.73 is: 15,409.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.12 : 27,764.00 = 11,166.73 : x
  2. Step 2: Convert to fraction form
    20,119.12/27,764.00 = 11,166.73/x
  3. Step 3: Cross multiply
    20,119.12x = 27,764.00 × 11,166.73
  4. Step 4: Simplify right side
    20,119.12x = 310,032,966.48
  5. Step 5: Solve for x
    x = 310,032,966.48/20,119.12
  6. Step 6: Final answer
    x = 15,409.87

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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.