Home / 18,518.96-27,766.12-10,202.90

Finding the Fourth Proportional to 18,518.96, 27,766.12 and 10,202.90

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Solution

The fourth proportional to 18,518.96, 27,766.12 and 10,202.90 is: 15,297.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.96 : 27,766.12 = 10,202.90 : x
  2. Step 2: Convert to fraction form
    18,518.96/27,766.12 = 10,202.90/x
  3. Step 3: Cross multiply
    18,518.96x = 27,766.12 × 10,202.90
  4. Step 4: Simplify right side
    18,518.96x = 283,294,945.75
  5. Step 5: Solve for x
    x = 283,294,945.75/18,518.96
  6. Step 6: Final answer
    x = 15,297.56

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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.