Home / 11,431.60-17,148.66-3,638.62

Finding the Fourth Proportional to 11,431.60, 17,148.66 and 3,638.62

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Solution

The fourth proportional to 11,431.60, 17,148.66 and 3,638.62 is: 5,458.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.60 : 17,148.66 = 3,638.62 : x
  2. Step 2: Convert to fraction form
    11,431.60/17,148.66 = 3,638.62/x
  3. Step 3: Cross multiply
    11,431.60x = 17,148.66 × 3,638.62
  4. Step 4: Simplify right side
    11,431.60x = 62,397,457.25
  5. Step 5: Solve for x
    x = 62,397,457.25/11,431.60
  6. Step 6: Final answer
    x = 5,458.33

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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.