Home / 13,794.28-20,691.54-3,406.12

Finding the Fourth Proportional to 13,794.28, 20,691.54 and 3,406.12

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Solution

The fourth proportional to 13,794.28, 20,691.54 and 3,406.12 is: 5,109.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,794.28 : 20,691.54 = 3,406.12 : x
  2. Step 2: Convert to fraction form
    13,794.28/20,691.54 = 3,406.12/x
  3. Step 3: Cross multiply
    13,794.28x = 20,691.54 × 3,406.12
  4. Step 4: Simplify right side
    13,794.28x = 70,477,868.22
  5. Step 5: Solve for x
    x = 70,477,868.22/13,794.28
  6. Step 6: Final answer
    x = 5,109.21

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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.