Home / 8,531.50-12,795.99-2,689.54

Finding the Fourth Proportional to 8,531.50, 12,795.99 and 2,689.54

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Solution

The fourth proportional to 8,531.50, 12,795.99 and 2,689.54 is: 4,033.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.50 : 12,795.99 = 2,689.54 : x
  2. Step 2: Convert to fraction form
    8,531.50/12,795.99 = 2,689.54/x
  3. Step 3: Cross multiply
    8,531.50x = 12,795.99 × 2,689.54
  4. Step 4: Simplify right side
    8,531.50x = 34,415,326.94
  5. Step 5: Solve for x
    x = 34,415,326.94/8,531.50
  6. Step 6: Final answer
    x = 4,033.91

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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.