Home / 18,583.80-27,837.90-11,542.20

Finding the Fourth Proportional to 18,583.80, 27,837.90 and 11,542.20

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Solution

The fourth proportional to 18,583.80, 27,837.90 and 11,542.20 is: 17,289.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,583.80 : 27,837.90 = 11,542.20 : x
  2. Step 2: Convert to fraction form
    18,583.80/27,837.90 = 11,542.20/x
  3. Step 3: Cross multiply
    18,583.80x = 27,837.90 × 11,542.20
  4. Step 4: Simplify right side
    18,583.80x = 321,310,609.38
  5. Step 5: Solve for x
    x = 321,310,609.38/18,583.80
  6. Step 6: Final answer
    x = 17,289.82

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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.