Home / 18,570.11-27,852.43-5,418.95

Finding the Fourth Proportional to 18,570.11, 27,852.43 and 5,418.95

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Solution

The fourth proportional to 18,570.11, 27,852.43 and 5,418.95 is: 8,127.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.11 : 27,852.43 = 5,418.95 : x
  2. Step 2: Convert to fraction form
    18,570.11/27,852.43 = 5,418.95/x
  3. Step 3: Cross multiply
    18,570.11x = 27,852.43 × 5,418.95
  4. Step 4: Simplify right side
    18,570.11x = 150,930,898.45
  5. Step 5: Solve for x
    x = 150,930,898.45/18,570.11
  6. Step 6: Final answer
    x = 8,127.63

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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.