Home / 11,431.60-17,148.63-3,638.59

Finding the Fourth Proportional to 11,431.60, 17,148.63 and 3,638.59

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Solution

The fourth proportional to 11,431.60, 17,148.63 and 3,638.59 is: 5,458.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.60 : 17,148.63 = 3,638.59 : x
  2. Step 2: Convert to fraction form
    11,431.60/17,148.63 = 3,638.59/x
  3. Step 3: Cross multiply
    11,431.60x = 17,148.63 × 3,638.59
  4. Step 4: Simplify right side
    11,431.60x = 62,396,833.63
  5. Step 5: Solve for x
    x = 62,396,833.63/11,431.60
  6. Step 6: Final answer
    x = 5,458.28

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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.