Home / 13,708.38-18,913.68-8,604.54

Finding the Fourth Proportional to 13,708.38, 18,913.68 and 8,604.54

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Solution

The fourth proportional to 13,708.38, 18,913.68 and 8,604.54 is: 11,871.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.38 : 18,913.68 = 8,604.54 : x
  2. Step 2: Convert to fraction form
    13,708.38/18,913.68 = 8,604.54/x
  3. Step 3: Cross multiply
    13,708.38x = 18,913.68 × 8,604.54
  4. Step 4: Simplify right side
    13,708.38x = 162,743,516.11
  5. Step 5: Solve for x
    x = 162,743,516.11/13,708.38
  6. Step 6: Final answer
    x = 11,871.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.