Home / 13,591.16-20,383.04-3,728.09

Finding the Fourth Proportional to 13,591.16, 20,383.04 and 3,728.09

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Solution

The fourth proportional to 13,591.16, 20,383.04 and 3,728.09 is: 5,591.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.16 : 20,383.04 = 3,728.09 : x
  2. Step 2: Convert to fraction form
    13,591.16/20,383.04 = 3,728.09/x
  3. Step 3: Cross multiply
    13,591.16x = 20,383.04 × 3,728.09
  4. Step 4: Simplify right side
    13,591.16x = 75,989,807.59
  5. Step 5: Solve for x
    x = 75,989,807.59/13,591.16
  6. Step 6: Final answer
    x = 5,591.12

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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.