Home / 8,390.12-12,585.49-2,546.57

Finding the Fourth Proportional to 8,390.12, 12,585.49 and 2,546.57

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Solution

The fourth proportional to 8,390.12, 12,585.49 and 2,546.57 is: 3,819.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.12 : 12,585.49 = 2,546.57 : x
  2. Step 2: Convert to fraction form
    8,390.12/12,585.49 = 2,546.57/x
  3. Step 3: Cross multiply
    8,390.12x = 12,585.49 × 2,546.57
  4. Step 4: Simplify right side
    8,390.12x = 32,049,870.69
  5. Step 5: Solve for x
    x = 32,049,870.69/8,390.12
  6. Step 6: Final answer
    x = 3,819.96

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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.