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Finding the Fourth Proportional to 8,082.30, 12,099.15 and 7,110.30

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Solution

The fourth proportional to 8,082.30, 12,099.15 and 7,110.30 is: 10,644.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,082.30 : 12,099.15 = 7,110.30 : x
  2. Step 2: Convert to fraction form
    8,082.30/12,099.15 = 7,110.30/x
  3. Step 3: Cross multiply
    8,082.30x = 12,099.15 × 7,110.30
  4. Step 4: Simplify right side
    8,082.30x = 86,028,586.25
  5. Step 5: Solve for x
    x = 86,028,586.25/8,082.30
  6. Step 6: Final answer
    x = 10,644.07

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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.