Home / 18,553.50-27,760.37-13,017.78

Finding the Fourth Proportional to 18,553.50, 27,760.37 and 13,017.78

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Solution

The fourth proportional to 18,553.50, 27,760.37 and 13,017.78 is: 19,477.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.50 : 27,760.37 = 13,017.78 : x
  2. Step 2: Convert to fraction form
    18,553.50/27,760.37 = 13,017.78/x
  3. Step 3: Cross multiply
    18,553.50x = 27,760.37 × 13,017.78
  4. Step 4: Simplify right side
    18,553.50x = 361,378,324.29
  5. Step 5: Solve for x
    x = 361,378,324.29/18,553.50
  6. Step 6: Final answer
    x = 19,477.64

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1.5x scale

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.