Home / 19,628.58-27,086.86-11,131.48

Finding the Fourth Proportional to 19,628.58, 27,086.86 and 11,131.48

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Solution

The fourth proportional to 19,628.58, 27,086.86 and 11,131.48 is: 15,361.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,628.58 : 27,086.86 = 11,131.48 : x
  2. Step 2: Convert to fraction form
    19,628.58/27,086.86 = 11,131.48/x
  3. Step 3: Cross multiply
    19,628.58x = 27,086.86 × 11,131.48
  4. Step 4: Simplify right side
    19,628.58x = 301,516,840.35
  5. Step 5: Solve for x
    x = 301,516,840.35/19,628.58
  6. Step 6: Final answer
    x = 15,361.11

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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.