Home / 13,589.15-20,383.73-3,728.50

Finding the Fourth Proportional to 13,589.15, 20,383.73 and 3,728.50

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Solution

The fourth proportional to 13,589.15, 20,383.73 and 3,728.50 is: 5,592.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.15 : 20,383.73 = 3,728.50 : x
  2. Step 2: Convert to fraction form
    13,589.15/20,383.73 = 3,728.50/x
  3. Step 3: Cross multiply
    13,589.15x = 20,383.73 × 3,728.50
  4. Step 4: Simplify right side
    13,589.15x = 76,000,681.69
  5. Step 5: Solve for x
    x = 76,000,681.69/13,589.15
  6. Step 6: Final answer
    x = 5,592.75

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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.