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Finding the Fourth Proportional to 8,630.55, 12,944.43 and 3,082.95

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Solution

The fourth proportional to 8,630.55, 12,944.43 and 3,082.95 is: 4,623.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.55 : 12,944.43 = 3,082.95 : x
  2. Step 2: Convert to fraction form
    8,630.55/12,944.43 = 3,082.95/x
  3. Step 3: Cross multiply
    8,630.55x = 12,944.43 × 3,082.95
  4. Step 4: Simplify right side
    8,630.55x = 39,907,030.47
  5. Step 5: Solve for x
    x = 39,907,030.47/8,630.55
  6. Step 6: Final answer
    x = 4,623.93

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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.