Home / 13,614.24-20,421.30-3,753.60

Finding the Fourth Proportional to 13,614.24, 20,421.30 and 3,753.60

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Solution

The fourth proportional to 13,614.24, 20,421.30 and 3,753.60 is: 5,630.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.24 : 20,421.30 = 3,753.60 : x
  2. Step 2: Convert to fraction form
    13,614.24/20,421.30 = 3,753.60/x
  3. Step 3: Cross multiply
    13,614.24x = 20,421.30 × 3,753.60
  4. Step 4: Simplify right side
    13,614.24x = 76,653,391.68
  5. Step 5: Solve for x
    x = 76,653,391.68/13,614.24
  6. Step 6: Final answer
    x = 5,630.38

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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.