Home / 13,591.46-20,384.80-3,728.36

Finding the Fourth Proportional to 13,591.46, 20,384.80 and 3,728.36

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Solution

The fourth proportional to 13,591.46, 20,384.80 and 3,728.36 is: 5,591.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.46 : 20,384.80 = 3,728.36 : x
  2. Step 2: Convert to fraction form
    13,591.46/20,384.80 = 3,728.36/x
  3. Step 3: Cross multiply
    13,591.46x = 20,384.80 × 3,728.36
  4. Step 4: Simplify right side
    13,591.46x = 76,001,914.57
  5. Step 5: Solve for x
    x = 76,001,914.57/13,591.46
  6. Step 6: Final answer
    x = 5,591.89

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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.