Home / 8,525.66-12,789.70-2,680.29

Finding the Fourth Proportional to 8,525.66, 12,789.70 and 2,680.29

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Solution

The fourth proportional to 8,525.66, 12,789.70 and 2,680.29 is: 4,020.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,525.66 : 12,789.70 = 2,680.29 : x
  2. Step 2: Convert to fraction form
    8,525.66/12,789.70 = 2,680.29/x
  3. Step 3: Cross multiply
    8,525.66x = 12,789.70 × 2,680.29
  4. Step 4: Simplify right side
    8,525.66x = 34,280,098.31
  5. Step 5: Solve for x
    x = 34,280,098.31/8,525.66
  6. Step 6: Final answer
    x = 4,020.82

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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.