Home / 18,119.34-27,181.57-5,640.62

Finding the Fourth Proportional to 18,119.34, 27,181.57 and 5,640.62

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Solution

The fourth proportional to 18,119.34, 27,181.57 and 5,640.62 is: 8,461.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.34 : 27,181.57 = 5,640.62 : x
  2. Step 2: Convert to fraction form
    18,119.34/27,181.57 = 5,640.62/x
  3. Step 3: Cross multiply
    18,119.34x = 27,181.57 × 5,640.62
  4. Step 4: Simplify right side
    18,119.34x = 153,320,907.37
  5. Step 5: Solve for x
    x = 153,320,907.37/18,119.34
  6. Step 6: Final answer
    x = 8,461.73

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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.