Home / 13,801.28-20,698.97-3,937.91

Finding the Fourth Proportional to 13,801.28, 20,698.97 and 3,937.91

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Solution

The fourth proportional to 13,801.28, 20,698.97 and 3,937.91 is: 5,906.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.28 : 20,698.97 = 3,937.91 : x
  2. Step 2: Convert to fraction form
    13,801.28/20,698.97 = 3,937.91/x
  3. Step 3: Cross multiply
    13,801.28x = 20,698.97 × 3,937.91
  4. Step 4: Simplify right side
    13,801.28x = 81,510,557.77
  5. Step 5: Solve for x
    x = 81,510,557.77/13,801.28
  6. Step 6: Final answer
    x = 5,906.02

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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.