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Finding the Fourth Proportional to 18,127.87, 27,201.71 and 7,034.99

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Solution

The fourth proportional to 18,127.87, 27,201.71 and 7,034.99 is: 10,556.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.87 : 27,201.71 = 7,034.99 : x
  2. Step 2: Convert to fraction form
    18,127.87/27,201.71 = 7,034.99/x
  3. Step 3: Cross multiply
    18,127.87x = 27,201.71 × 7,034.99
  4. Step 4: Simplify right side
    18,127.87x = 191,363,757.83
  5. Step 5: Solve for x
    x = 191,363,757.83/18,127.87
  6. Step 6: Final answer
    x = 10,556.33

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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.