Home / 11,428.10-17,143.38-3,635.09

Finding the Fourth Proportional to 11,428.10, 17,143.38 and 3,635.09

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Solution

The fourth proportional to 11,428.10, 17,143.38 and 3,635.09 is: 5,453.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.10 : 17,143.38 = 3,635.09 : x
  2. Step 2: Convert to fraction form
    11,428.10/17,143.38 = 3,635.09/x
  3. Step 3: Cross multiply
    11,428.10x = 17,143.38 × 3,635.09
  4. Step 4: Simplify right side
    11,428.10x = 62,317,729.20
  5. Step 5: Solve for x
    x = 62,317,729.20/11,428.10
  6. Step 6: Final answer
    x = 5,453.03

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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.