Home / 18,285.76-27,419.84-7,744.96

Finding the Fourth Proportional to 18,285.76, 27,419.84 and 7,744.96

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Solution

The fourth proportional to 18,285.76, 27,419.84 and 7,744.96 is: 11,613.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.76 : 27,419.84 = 7,744.96 : x
  2. Step 2: Convert to fraction form
    18,285.76/27,419.84 = 7,744.96/x
  3. Step 3: Cross multiply
    18,285.76x = 27,419.84 × 7,744.96
  4. Step 4: Simplify right side
    18,285.76x = 212,365,564.01
  5. Step 5: Solve for x
    x = 212,365,564.01/18,285.76
  6. Step 6: Final answer
    x = 11,613.71

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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.