Home / 18,795.22-28,181.89-7,109.35

Finding the Fourth Proportional to 18,795.22, 28,181.89 and 7,109.35

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Solution

The fourth proportional to 18,795.22, 28,181.89 and 7,109.35 is: 10,659.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795.22 : 28,181.89 = 7,109.35 : x
  2. Step 2: Convert to fraction form
    18,795.22/28,181.89 = 7,109.35/x
  3. Step 3: Cross multiply
    18,795.22x = 28,181.89 × 7,109.35
  4. Step 4: Simplify right side
    18,795.22x = 200,354,778.76
  5. Step 5: Solve for x
    x = 200,354,778.76/18,795.22
  6. Step 6: Final answer
    x = 10,659.88

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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.