Home / 12,028.30-18,047.85-5,451.10

Finding the Fourth Proportional to 12,028.30, 18,047.85 and 5,451.10

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Solution

The fourth proportional to 12,028.30, 18,047.85 and 5,451.10 is: 8,179.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,028.30 : 18,047.85 = 5,451.10 : x
  2. Step 2: Convert to fraction form
    12,028.30/18,047.85 = 5,451.10/x
  3. Step 3: Cross multiply
    12,028.30x = 18,047.85 × 5,451.10
  4. Step 4: Simplify right side
    12,028.30x = 98,380,635.14
  5. Step 5: Solve for x
    x = 98,380,635.14/12,028.30
  6. Step 6: Final answer
    x = 8,179.10

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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.