Home / 13,951.48-20,928.40-3,956.28

Finding the Fourth Proportional to 13,951.48, 20,928.40 and 3,956.28

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Solution

The fourth proportional to 13,951.48, 20,928.40 and 3,956.28 is: 5,934.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.48 : 20,928.40 = 3,956.28 : x
  2. Step 2: Convert to fraction form
    13,951.48/20,928.40 = 3,956.28/x
  3. Step 3: Cross multiply
    13,951.48x = 20,928.40 × 3,956.28
  4. Step 4: Simplify right side
    13,951.48x = 82,798,610.35
  5. Step 5: Solve for x
    x = 82,798,610.35/13,951.48
  6. Step 6: Final answer
    x = 5,934.75

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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.