Home / 13,388.92-18,476.22-8,083.24

Finding the Fourth Proportional to 13,388.92, 18,476.22 and 8,083.24

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Solution

The fourth proportional to 13,388.92, 18,476.22 and 8,083.24 is: 11,154.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.92 : 18,476.22 = 8,083.24 : x
  2. Step 2: Convert to fraction form
    13,388.92/18,476.22 = 8,083.24/x
  3. Step 3: Cross multiply
    13,388.92x = 18,476.22 × 8,083.24
  4. Step 4: Simplify right side
    13,388.92x = 149,347,720.55
  5. Step 5: Solve for x
    x = 149,347,720.55/13,388.92
  6. Step 6: Final answer
    x = 11,154.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.