Home / 13,382.49-18,468.33-8,076.28

Finding the Fourth Proportional to 13,382.49, 18,468.33 and 8,076.28

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Solution

The fourth proportional to 13,382.49, 18,468.33 and 8,076.28 is: 11,145.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.49 : 18,468.33 = 8,076.28 : x
  2. Step 2: Convert to fraction form
    13,382.49/18,468.33 = 8,076.28/x
  3. Step 3: Cross multiply
    13,382.49x = 18,468.33 × 8,076.28
  4. Step 4: Simplify right side
    13,382.49x = 149,155,404.21
  5. Step 5: Solve for x
    x = 149,155,404.21/13,382.49
  6. Step 6: Final answer
    x = 11,145.56

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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.