Home / 13,554.24-20,331.72-3,693.69

Finding the Fourth Proportional to 13,554.24, 20,331.72 and 3,693.69

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Solution

The fourth proportional to 13,554.24, 20,331.72 and 3,693.69 is: 5,540.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.24 : 20,331.72 = 3,693.69 : x
  2. Step 2: Convert to fraction form
    13,554.24/20,331.72 = 3,693.69/x
  3. Step 3: Cross multiply
    13,554.24x = 20,331.72 × 3,693.69
  4. Step 4: Simplify right side
    13,554.24x = 75,099,070.85
  5. Step 5: Solve for x
    x = 75,099,070.85/13,554.24
  6. Step 6: Final answer
    x = 5,540.63

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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.