Home / 13,425.16-20,137.92-4,660.24

Finding the Fourth Proportional to 13,425.16, 20,137.92 and 4,660.24

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Solution

The fourth proportional to 13,425.16, 20,137.92 and 4,660.24 is: 6,990.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.16 : 20,137.92 = 4,660.24 : x
  2. Step 2: Convert to fraction form
    13,425.16/20,137.92 = 4,660.24/x
  3. Step 3: Cross multiply
    13,425.16x = 20,137.92 × 4,660.24
  4. Step 4: Simplify right side
    13,425.16x = 93,847,540.30
  5. Step 5: Solve for x
    x = 93,847,540.30/13,425.16
  6. Step 6: Final answer
    x = 6,990.42

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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.