Home / 18,301.88-27,452.21-7,765.13

Finding the Fourth Proportional to 18,301.88, 27,452.21 and 7,765.13

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Solution

The fourth proportional to 18,301.88, 27,452.21 and 7,765.13 is: 11,647.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,301.88 : 27,452.21 = 7,765.13 : x
  2. Step 2: Convert to fraction form
    18,301.88/27,452.21 = 7,765.13/x
  3. Step 3: Cross multiply
    18,301.88x = 27,452.21 × 7,765.13
  4. Step 4: Simplify right side
    18,301.88x = 213,169,979.44
  5. Step 5: Solve for x
    x = 213,169,979.44/18,301.88
  6. Step 6: Final answer
    x = 11,647.44

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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.