Home / 13,769.43-18,998.69-7,799.73

Finding the Fourth Proportional to 13,769.43, 18,998.69 and 7,799.73

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Solution

The fourth proportional to 13,769.43, 18,998.69 and 7,799.73 is: 10,761.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.43 : 18,998.69 = 7,799.73 : x
  2. Step 2: Convert to fraction form
    13,769.43/18,998.69 = 7,799.73/x
  3. Step 3: Cross multiply
    13,769.43x = 18,998.69 × 7,799.73
  4. Step 4: Simplify right side
    13,769.43x = 148,184,613.36
  5. Step 5: Solve for x
    x = 148,184,613.36/13,769.43
  6. Step 6: Final answer
    x = 10,761.86

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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.