Home / 8,510.85-12,766.31-2,587.80

Finding the Fourth Proportional to 8,510.85, 12,766.31 and 2,587.80

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Solution

The fourth proportional to 8,510.85, 12,766.31 and 2,587.80 is: 3,881.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,510.85 : 12,766.31 = 2,587.80 : x
  2. Step 2: Convert to fraction form
    8,510.85/12,766.31 = 2,587.80/x
  3. Step 3: Cross multiply
    8,510.85x = 12,766.31 × 2,587.80
  4. Step 4: Simplify right side
    8,510.85x = 33,036,644.08
  5. Step 5: Solve for x
    x = 33,036,644.08/8,510.85
  6. Step 6: Final answer
    x = 3,881.71

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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.