Home / 12,847.20-19,273.88-4,082.12

Finding the Fourth Proportional to 12,847.20, 19,273.88 and 4,082.12

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Solution

The fourth proportional to 12,847.20, 19,273.88 and 4,082.12 is: 6,124.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,847.20 : 19,273.88 = 4,082.12 : x
  2. Step 2: Convert to fraction form
    12,847.20/19,273.88 = 4,082.12/x
  3. Step 3: Cross multiply
    12,847.20x = 19,273.88 × 4,082.12
  4. Step 4: Simplify right side
    12,847.20x = 78,678,349.42
  5. Step 5: Solve for x
    x = 78,678,349.42/12,847.20
  6. Step 6: Final answer
    x = 6,124.16

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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.