Home / 8,315.25-12,472.83-2,768.58

Finding the Fourth Proportional to 8,315.25, 12,472.83 and 2,768.58

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Solution

The fourth proportional to 8,315.25, 12,472.83 and 2,768.58 is: 4,152.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.25 : 12,472.83 = 2,768.58 : x
  2. Step 2: Convert to fraction form
    8,315.25/12,472.83 = 2,768.58/x
  3. Step 3: Cross multiply
    8,315.25x = 12,472.83 × 2,768.58
  4. Step 4: Simplify right side
    8,315.25x = 34,532,027.68
  5. Step 5: Solve for x
    x = 34,532,027.68/8,315.25
  6. Step 6: Final answer
    x = 4,152.86

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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.