Home / 18,512.80-27,769.76-5,365.72

Finding the Fourth Proportional to 18,512.80, 27,769.76 and 5,365.72

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Solution

The fourth proportional to 18,512.80, 27,769.76 and 5,365.72 is: 8,048.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,512.80 : 27,769.76 = 5,365.72 : x
  2. Step 2: Convert to fraction form
    18,512.80/27,769.76 = 5,365.72/x
  3. Step 3: Cross multiply
    18,512.80x = 27,769.76 × 5,365.72
  4. Step 4: Simplify right side
    18,512.80x = 149,004,756.63
  5. Step 5: Solve for x
    x = 149,004,756.63/18,512.80
  6. Step 6: Final answer
    x = 8,048.74

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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.