Home / 8,315.20-12,473.22-2,769.10

Finding the Fourth Proportional to 8,315.20, 12,473.22 and 2,769.10

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Solution

The fourth proportional to 8,315.20, 12,473.22 and 2,769.10 is: 4,153.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.20 : 12,473.22 = 2,769.10 : x
  2. Step 2: Convert to fraction form
    8,315.20/12,473.22 = 2,769.10/x
  3. Step 3: Cross multiply
    8,315.20x = 12,473.22 × 2,769.10
  4. Step 4: Simplify right side
    8,315.20x = 34,539,593.50
  5. Step 5: Solve for x
    x = 34,539,593.50/8,315.20
  6. Step 6: Final answer
    x = 4,153.79

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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.