Home / 13,591.53-20,383.58-3,728.46

Finding the Fourth Proportional to 13,591.53, 20,383.58 and 3,728.46

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Solution

The fourth proportional to 13,591.53, 20,383.58 and 3,728.46 is: 5,591.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.53 : 20,383.58 = 3,728.46 : x
  2. Step 2: Convert to fraction form
    13,591.53/20,383.58 = 3,728.46/x
  3. Step 3: Cross multiply
    13,591.53x = 20,383.58 × 3,728.46
  4. Step 4: Simplify right side
    13,591.53x = 75,999,448.45
  5. Step 5: Solve for x
    x = 75,999,448.45/13,591.53
  6. Step 6: Final answer
    x = 5,591.68

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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.