Home / 18,178.24-27,206.40-13,771.20

Finding the Fourth Proportional to 18,178.24, 27,206.40 and 13,771.20

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Solution

The fourth proportional to 18,178.24, 27,206.40 and 13,771.20 is: 20,610.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,178.24 : 27,206.40 = 13,771.20 : x
  2. Step 2: Convert to fraction form
    18,178.24/27,206.40 = 13,771.20/x
  3. Step 3: Cross multiply
    18,178.24x = 27,206.40 × 13,771.20
  4. Step 4: Simplify right side
    18,178.24x = 374,664,775.68
  5. Step 5: Solve for x
    x = 374,664,775.68/18,178.24
  6. Step 6: Final answer
    x = 20,610.62

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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.