Home / 12,556.92-18,836.35-3,791.81

Finding the Fourth Proportional to 12,556.92, 18,836.35 and 3,791.81

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Solution

The fourth proportional to 12,556.92, 18,836.35 and 3,791.81 is: 5,688.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.92 : 18,836.35 = 3,791.81 : x
  2. Step 2: Convert to fraction form
    12,556.92/18,836.35 = 3,791.81/x
  3. Step 3: Cross multiply
    12,556.92x = 18,836.35 × 3,791.81
  4. Step 4: Simplify right side
    12,556.92x = 71,423,897.90
  5. Step 5: Solve for x
    x = 71,423,897.90/12,556.92
  6. Step 6: Final answer
    x = 5,688.01

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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.