Home / 8,630.89-12,943.14-3,082.75

Finding the Fourth Proportional to 8,630.89, 12,943.14 and 3,082.75

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Solution

The fourth proportional to 8,630.89, 12,943.14 and 3,082.75 is: 4,622.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.89 : 12,943.14 = 3,082.75 : x
  2. Step 2: Convert to fraction form
    8,630.89/12,943.14 = 3,082.75/x
  3. Step 3: Cross multiply
    8,630.89x = 12,943.14 × 3,082.75
  4. Step 4: Simplify right side
    8,630.89x = 39,900,464.84
  5. Step 5: Solve for x
    x = 39,900,464.84/8,630.89
  6. Step 6: Final answer
    x = 4,622.98

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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.