Home / 18,171.24-27,202.54-11,129.08

Finding the Fourth Proportional to 18,171.24, 27,202.54 and 11,129.08

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Solution

The fourth proportional to 18,171.24, 27,202.54 and 11,129.08 is: 16,660.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171.24 : 27,202.54 = 11,129.08 : x
  2. Step 2: Convert to fraction form
    18,171.24/27,202.54 = 11,129.08/x
  3. Step 3: Cross multiply
    18,171.24x = 27,202.54 × 11,129.08
  4. Step 4: Simplify right side
    18,171.24x = 302,739,243.86
  5. Step 5: Solve for x
    x = 302,739,243.86/18,171.24
  6. Step 6: Final answer
    x = 16,660.35

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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.