Home / 18,965.82-28,427.54-7,108.19

Finding the Fourth Proportional to 18,965.82, 28,427.54 and 7,108.19

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Solution

The fourth proportional to 18,965.82, 28,427.54 and 7,108.19 is: 10,654.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965.82 : 28,427.54 = 7,108.19 : x
  2. Step 2: Convert to fraction form
    18,965.82/28,427.54 = 7,108.19/x
  3. Step 3: Cross multiply
    18,965.82x = 28,427.54 × 7,108.19
  4. Step 4: Simplify right side
    18,965.82x = 202,068,177.87
  5. Step 5: Solve for x
    x = 202,068,177.87/18,965.82
  6. Step 6: Final answer
    x = 10,654.33

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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.