Home / 18,835.21-28,236.66-7,734.97

Finding the Fourth Proportional to 18,835.21, 28,236.66 and 7,734.97

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Solution

The fourth proportional to 18,835.21, 28,236.66 and 7,734.97 is: 11,595.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.21 : 28,236.66 = 7,734.97 : x
  2. Step 2: Convert to fraction form
    18,835.21/28,236.66 = 7,734.97/x
  3. Step 3: Cross multiply
    18,835.21x = 28,236.66 × 7,734.97
  4. Step 4: Simplify right side
    18,835.21x = 218,409,718.00
  5. Step 5: Solve for x
    x = 218,409,718.00/18,835.21
  6. Step 6: Final answer
    x = 11,595.82

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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.