Home / 8,520.24-12,778.68-4,362.48

Finding the Fourth Proportional to 8,520.24, 12,778.68 and 4,362.48

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Solution

The fourth proportional to 8,520.24, 12,778.68 and 4,362.48 is: 6,542.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.24 : 12,778.68 = 4,362.48 : x
  2. Step 2: Convert to fraction form
    8,520.24/12,778.68 = 4,362.48/x
  3. Step 3: Cross multiply
    8,520.24x = 12,778.68 × 4,362.48
  4. Step 4: Simplify right side
    8,520.24x = 55,746,735.93
  5. Step 5: Solve for x
    x = 55,746,735.93/8,520.24
  6. Step 6: Final answer
    x = 6,542.86

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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.