Home / 18,123.96-27,181.44-4,975.68

Finding the Fourth Proportional to 18,123.96, 27,181.44 and 4,975.68

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Solution

The fourth proportional to 18,123.96, 27,181.44 and 4,975.68 is: 7,462.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123.96 : 27,181.44 = 4,975.68 : x
  2. Step 2: Convert to fraction form
    18,123.96/27,181.44 = 4,975.68/x
  3. Step 3: Cross multiply
    18,123.96x = 27,181.44 × 4,975.68
  4. Step 4: Simplify right side
    18,123.96x = 135,246,147.38
  5. Step 5: Solve for x
    x = 135,246,147.38/18,123.96
  6. Step 6: Final answer
    x = 7,462.28

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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.