Home / 13,769.12-20,662.48-5,003.20

Finding the Fourth Proportional to 13,769.12, 20,662.48 and 5,003.20

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Solution

The fourth proportional to 13,769.12, 20,662.48 and 5,003.20 is: 7,508.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.12 : 20,662.48 = 5,003.20 : x
  2. Step 2: Convert to fraction form
    13,769.12/20,662.48 = 5,003.20/x
  3. Step 3: Cross multiply
    13,769.12x = 20,662.48 × 5,003.20
  4. Step 4: Simplify right side
    13,769.12x = 103,378,519.94
  5. Step 5: Solve for x
    x = 103,378,519.94/13,769.12
  6. Step 6: Final answer
    x = 7,508.00

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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.