Home / 13,542.64-20,315.90-4,183.44

Finding the Fourth Proportional to 13,542.64, 20,315.90 and 4,183.44

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Solution

The fourth proportional to 13,542.64, 20,315.90 and 4,183.44 is: 6,275.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.64 : 20,315.90 = 4,183.44 : x
  2. Step 2: Convert to fraction form
    13,542.64/20,315.90 = 4,183.44/x
  3. Step 3: Cross multiply
    13,542.64x = 20,315.90 × 4,183.44
  4. Step 4: Simplify right side
    13,542.64x = 84,990,348.70
  5. Step 5: Solve for x
    x = 84,990,348.70/13,542.64
  6. Step 6: Final answer
    x = 6,275.76

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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.