Home / 18,519.96-27,767.62-10,203.90

Finding the Fourth Proportional to 18,519.96, 27,767.62 and 10,203.90

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Solution

The fourth proportional to 18,519.96, 27,767.62 and 10,203.90 is: 15,299.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.96 : 27,767.62 = 10,203.90 : x
  2. Step 2: Convert to fraction form
    18,519.96/27,767.62 = 10,203.90/x
  3. Step 3: Cross multiply
    18,519.96x = 27,767.62 × 10,203.90
  4. Step 4: Simplify right side
    18,519.96x = 283,338,017.72
  5. Step 5: Solve for x
    x = 283,338,017.72/18,519.96
  6. Step 6: Final answer
    x = 15,299.06

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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.