Home / 19,628.67-27,087-11,131.59

Finding the Fourth Proportional to 19,628.67, 27,087 and 11,131.59

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Solution

The fourth proportional to 19,628.67, 27,087 and 11,131.59 is: 15,361.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,628.67 : 27,087 = 11,131.59 : x
  2. Step 2: Convert to fraction form
    19,628.67/27,087 = 11,131.59/x
  3. Step 3: Cross multiply
    19,628.67x = 27,087 × 11,131.59
  4. Step 4: Simplify right side
    19,628.67x = 301,521,378.33
  5. Step 5: Solve for x
    x = 301,521,378.33/19,628.67
  6. Step 6: Final answer
    x = 15,361.27

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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.