Home / 11,431.23-17,148.05-3,638.22

Finding the Fourth Proportional to 11,431.23, 17,148.05 and 3,638.22

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Solution

The fourth proportional to 11,431.23, 17,148.05 and 3,638.22 is: 5,457.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.23 : 17,148.05 = 3,638.22 : x
  2. Step 2: Convert to fraction form
    11,431.23/17,148.05 = 3,638.22/x
  3. Step 3: Cross multiply
    11,431.23x = 17,148.05 × 3,638.22
  4. Step 4: Simplify right side
    11,431.23x = 62,388,378.47
  5. Step 5: Solve for x
    x = 62,388,378.47/11,431.23
  6. Step 6: Final answer
    x = 5,457.71

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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.