Home / 8,755.28-13,128.96-2,513.87

Finding the Fourth Proportional to 8,755.28, 13,128.96 and 2,513.87

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Solution

The fourth proportional to 8,755.28, 13,128.96 and 2,513.87 is: 3,769.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.28 : 13,128.96 = 2,513.87 : x
  2. Step 2: Convert to fraction form
    8,755.28/13,128.96 = 2,513.87/x
  3. Step 3: Cross multiply
    8,755.28x = 13,128.96 × 2,513.87
  4. Step 4: Simplify right side
    8,755.28x = 33,004,433.03
  5. Step 5: Solve for x
    x = 33,004,433.03/8,755.28
  6. Step 6: Final answer
    x = 3,769.66

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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.