Home / 11,538.28-17,309.09-3,638.12

Finding the Fourth Proportional to 11,538.28, 17,309.09 and 3,638.12

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Solution

The fourth proportional to 11,538.28, 17,309.09 and 3,638.12 is: 5,457.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,538.28 : 17,309.09 = 3,638.12 : x
  2. Step 2: Convert to fraction form
    11,538.28/17,309.09 = 3,638.12/x
  3. Step 3: Cross multiply
    11,538.28x = 17,309.09 × 3,638.12
  4. Step 4: Simplify right side
    11,538.28x = 62,972,469.06
  5. Step 5: Solve for x
    x = 62,972,469.06/11,538.28
  6. Step 6: Final answer
    x = 5,457.70

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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.