Home / 18,255.08-27,382.68-5,107.43

Finding the Fourth Proportional to 18,255.08, 27,382.68 and 5,107.43

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Solution

The fourth proportional to 18,255.08, 27,382.68 and 5,107.43 is: 7,661.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.08 : 27,382.68 = 5,107.43 : x
  2. Step 2: Convert to fraction form
    18,255.08/27,382.68 = 5,107.43/x
  3. Step 3: Cross multiply
    18,255.08x = 27,382.68 × 5,107.43
  4. Step 4: Simplify right side
    18,255.08x = 139,854,984.40
  5. Step 5: Solve for x
    x = 139,854,984.40/18,255.08
  6. Step 6: Final answer
    x = 7,661.16

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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.