Home / 13,837.38-20,749.68-3,974.28

Finding the Fourth Proportional to 13,837.38, 20,749.68 and 3,974.28

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Solution

The fourth proportional to 13,837.38, 20,749.68 and 3,974.28 is: 5,959.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,837.38 : 20,749.68 = 3,974.28 : x
  2. Step 2: Convert to fraction form
    13,837.38/20,749.68 = 3,974.28/x
  3. Step 3: Cross multiply
    13,837.38x = 20,749.68 × 3,974.28
  4. Step 4: Simplify right side
    13,837.38x = 82,465,038.23
  5. Step 5: Solve for x
    x = 82,465,038.23/13,837.38
  6. Step 6: Final answer
    x = 5,959.58

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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.