Home / 13,556.22-18,707.38-8,247.27

Finding the Fourth Proportional to 13,556.22, 18,707.38 and 8,247.27

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Solution

The fourth proportional to 13,556.22, 18,707.38 and 8,247.27 is: 11,381.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.22 : 18,707.38 = 8,247.27 : x
  2. Step 2: Convert to fraction form
    13,556.22/18,707.38 = 8,247.27/x
  3. Step 3: Cross multiply
    13,556.22x = 18,707.38 × 8,247.27
  4. Step 4: Simplify right side
    13,556.22x = 154,284,813.85
  5. Step 5: Solve for x
    x = 154,284,813.85/13,556.22
  6. Step 6: Final answer
    x = 11,381.11

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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.