Home / 8,369.46-12,551.22-2,821.68

Finding the Fourth Proportional to 8,369.46, 12,551.22 and 2,821.68

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Solution

The fourth proportional to 8,369.46, 12,551.22 and 2,821.68 is: 4,231.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.46 : 12,551.22 = 2,821.68 : x
  2. Step 2: Convert to fraction form
    8,369.46/12,551.22 = 2,821.68/x
  3. Step 3: Cross multiply
    8,369.46x = 12,551.22 × 2,821.68
  4. Step 4: Simplify right side
    8,369.46x = 35,415,526.45
  5. Step 5: Solve for x
    x = 35,415,526.45/8,369.46
  6. Step 6: Final answer
    x = 4,231.52

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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.