Home / 18,530.75-27,726.41-12,994.91

Finding the Fourth Proportional to 18,530.75, 27,726.41 and 12,994.91

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Solution

The fourth proportional to 18,530.75, 27,726.41 and 12,994.91 is: 19,443.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,530.75 : 27,726.41 = 12,994.91 : x
  2. Step 2: Convert to fraction form
    18,530.75/27,726.41 = 12,994.91/x
  3. Step 3: Cross multiply
    18,530.75x = 27,726.41 × 12,994.91
  4. Step 4: Simplify right side
    18,530.75x = 360,302,202.57
  5. Step 5: Solve for x
    x = 360,302,202.57/18,530.75
  6. Step 6: Final answer
    x = 19,443.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.