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Finding the Fourth Proportional to 8,585.73, 12,861.29 and 7,195.17

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Solution

The fourth proportional to 8,585.73, 12,861.29 and 7,195.17 is: 10,778.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,585.73 : 12,861.29 = 7,195.17 : x
  2. Step 2: Convert to fraction form
    8,585.73/12,861.29 = 7,195.17/x
  3. Step 3: Cross multiply
    8,585.73x = 12,861.29 × 7,195.17
  4. Step 4: Simplify right side
    8,585.73x = 92,539,131.99
  5. Step 5: Solve for x
    x = 92,539,131.99/8,585.73
  6. Step 6: Final answer
    x = 10,778.25

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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.