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Finding the Fourth Proportional to 18,775.82, 28,162.65 and 6,295.34

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Solution

The fourth proportional to 18,775.82, 28,162.65 and 6,295.34 is: 9,442.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775.82 : 28,162.65 = 6,295.34 : x
  2. Step 2: Convert to fraction form
    18,775.82/28,162.65 = 6,295.34/x
  3. Step 3: Cross multiply
    18,775.82x = 28,162.65 × 6,295.34
  4. Step 4: Simplify right side
    18,775.82x = 177,293,457.05
  5. Step 5: Solve for x
    x = 177,293,457.05/18,775.82
  6. Step 6: Final answer
    x = 9,442.65

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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.