Home / 8,315.70-12,474.06-3,382.63

Finding the Fourth Proportional to 8,315.70, 12,474.06 and 3,382.63

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Solution

The fourth proportional to 8,315.70, 12,474.06 and 3,382.63 is: 5,074.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.70 : 12,474.06 = 3,382.63 : x
  2. Step 2: Convert to fraction form
    8,315.70/12,474.06 = 3,382.63/x
  3. Step 3: Cross multiply
    8,315.70x = 12,474.06 × 3,382.63
  4. Step 4: Simplify right side
    8,315.70x = 42,195,129.58
  5. Step 5: Solve for x
    x = 42,195,129.58/8,315.70
  6. Step 6: Final answer
    x = 5,074.15

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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.