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Finding the Fourth Proportional to 8,600.84, 12,900.52 and 6,091.65

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Solution

The fourth proportional to 8,600.84, 12,900.52 and 6,091.65 is: 9,136.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,600.84 : 12,900.52 = 6,091.65 : x
  2. Step 2: Convert to fraction form
    8,600.84/12,900.52 = 6,091.65/x
  3. Step 3: Cross multiply
    8,600.84x = 12,900.52 × 6,091.65
  4. Step 4: Simplify right side
    8,600.84x = 78,585,452.66
  5. Step 5: Solve for x
    x = 78,585,452.66/8,600.84
  6. Step 6: Final answer
    x = 9,136.95

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1.5x scale

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.