Home / 18,525.20-27,786.96-5,377.28

Finding the Fourth Proportional to 18,525.20, 27,786.96 and 5,377.28

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Solution

The fourth proportional to 18,525.20, 27,786.96 and 5,377.28 is: 8,065.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,525.20 : 27,786.96 = 5,377.28 : x
  2. Step 2: Convert to fraction form
    18,525.20/27,786.96 = 5,377.28/x
  3. Step 3: Cross multiply
    18,525.20x = 27,786.96 × 5,377.28
  4. Step 4: Simplify right side
    18,525.20x = 149,418,264.27
  5. Step 5: Solve for x
    x = 149,418,264.27/18,525.20
  6. Step 6: Final answer
    x = 8,065.68

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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.