Home / 13,436.96-18,544.75-8,131.86

Finding the Fourth Proportional to 13,436.96, 18,544.75 and 8,131.86

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Solution

The fourth proportional to 13,436.96, 18,544.75 and 8,131.86 is: 11,223.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.96 : 18,544.75 = 8,131.86 : x
  2. Step 2: Convert to fraction form
    13,436.96/18,544.75 = 8,131.86/x
  3. Step 3: Cross multiply
    13,436.96x = 18,544.75 × 8,131.86
  4. Step 4: Simplify right side
    13,436.96x = 150,803,290.41
  5. Step 5: Solve for x
    x = 150,803,290.41/13,436.96
  6. Step 6: Final answer
    x = 11,223.03

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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.