Home / 13,728.03-18,944.25-8,062.68

Finding the Fourth Proportional to 13,728.03, 18,944.25 and 8,062.68

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Solution

The fourth proportional to 13,728.03, 18,944.25 and 8,062.68 is: 11,126.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.03 : 18,944.25 = 8,062.68 : x
  2. Step 2: Convert to fraction form
    13,728.03/18,944.25 = 8,062.68/x
  3. Step 3: Cross multiply
    13,728.03x = 18,944.25 × 8,062.68
  4. Step 4: Simplify right side
    13,728.03x = 152,741,425.59
  5. Step 5: Solve for x
    x = 152,741,425.59/13,728.03
  6. Step 6: Final answer
    x = 11,126.25

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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.