Home / 18,876.92-28,313.94-5,729.36

Finding the Fourth Proportional to 18,876.92, 28,313.94 and 5,729.36

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Solution

The fourth proportional to 18,876.92, 28,313.94 and 5,729.36 is: 8,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,876.92 : 28,313.94 = 5,729.36 : x
  2. Step 2: Convert to fraction form
    18,876.92/28,313.94 = 5,729.36/x
  3. Step 3: Cross multiply
    18,876.92x = 28,313.94 × 5,729.36
  4. Step 4: Simplify right side
    18,876.92x = 162,220,755.28
  5. Step 5: Solve for x
    x = 162,220,755.28/18,876.92
  6. Step 6: Final answer
    x = 8,593.60

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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.