Home / 18,905.92-28,360.82-7,228.96

Finding the Fourth Proportional to 18,905.92, 28,360.82 and 7,228.96

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Solution

The fourth proportional to 18,905.92, 28,360.82 and 7,228.96 is: 10,844.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.92 : 28,360.82 = 7,228.96 : x
  2. Step 2: Convert to fraction form
    18,905.92/28,360.82 = 7,228.96/x
  3. Step 3: Cross multiply
    18,905.92x = 28,360.82 × 7,228.96
  4. Step 4: Simplify right side
    18,905.92x = 205,019,233.35
  5. Step 5: Solve for x
    x = 205,019,233.35/18,905.92
  6. Step 6: Final answer
    x = 10,844.18

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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.