Home / 13,871.33-20,814.55-5,104.97

Finding the Fourth Proportional to 13,871.33, 20,814.55 and 5,104.97

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Solution

The fourth proportional to 13,871.33, 20,814.55 and 5,104.97 is: 7,660.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.33 : 20,814.55 = 5,104.97 : x
  2. Step 2: Convert to fraction form
    13,871.33/20,814.55 = 5,104.97/x
  3. Step 3: Cross multiply
    13,871.33x = 20,814.55 × 5,104.97
  4. Step 4: Simplify right side
    13,871.33x = 106,257,536.48
  5. Step 5: Solve for x
    x = 106,257,536.48/13,871.33
  6. Step 6: Final answer
    x = 7,660.23

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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.