Home / 13,556.67-18,708.92-8,519.03

Finding the Fourth Proportional to 13,556.67, 18,708.92 and 8,519.03

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Solution

The fourth proportional to 13,556.67, 18,708.92 and 8,519.03 is: 11,756.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.67 : 18,708.92 = 8,519.03 : x
  2. Step 2: Convert to fraction form
    13,556.67/18,708.92 = 8,519.03/x
  3. Step 3: Cross multiply
    13,556.67x = 18,708.92 × 8,519.03
  4. Step 4: Simplify right side
    13,556.67x = 159,381,757.20
  5. Step 5: Solve for x
    x = 159,381,757.20/13,556.67
  6. Step 6: Final answer
    x = 11,756.70

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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.