Home / 11,638.27-17,457.63-3,318.51

Finding the Fourth Proportional to 11,638.27, 17,457.63 and 3,318.51

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Solution

The fourth proportional to 11,638.27, 17,457.63 and 3,318.51 is: 4,977.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,638.27 : 17,457.63 = 3,318.51 : x
  2. Step 2: Convert to fraction form
    11,638.27/17,457.63 = 3,318.51/x
  3. Step 3: Cross multiply
    11,638.27x = 17,457.63 × 3,318.51
  4. Step 4: Simplify right side
    11,638.27x = 57,933,319.73
  5. Step 5: Solve for x
    x = 57,933,319.73/11,638.27
  6. Step 6: Final answer
    x = 4,977.83

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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.