Home / 8,420.50-12,632.57-3,226.38

Finding the Fourth Proportional to 8,420.50, 12,632.57 and 3,226.38

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Solution

The fourth proportional to 8,420.50, 12,632.57 and 3,226.38 is: 4,840.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420.50 : 12,632.57 = 3,226.38 : x
  2. Step 2: Convert to fraction form
    8,420.50/12,632.57 = 3,226.38/x
  3. Step 3: Cross multiply
    8,420.50x = 12,632.57 × 3,226.38
  4. Step 4: Simplify right side
    8,420.50x = 40,757,471.20
  5. Step 5: Solve for x
    x = 40,757,471.20/8,420.50
  6. Step 6: Final answer
    x = 4,840.27

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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.