Home / 13,267.76-18,305.88-8,229.56

Finding the Fourth Proportional to 13,267.76, 18,305.88 and 8,229.56

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Solution

The fourth proportional to 13,267.76, 18,305.88 and 8,229.56 is: 11,354.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,267.76 : 18,305.88 = 8,229.56 : x
  2. Step 2: Convert to fraction form
    13,267.76/18,305.88 = 8,229.56/x
  3. Step 3: Cross multiply
    13,267.76x = 18,305.88 × 8,229.56
  4. Step 4: Simplify right side
    13,267.76x = 150,649,337.81
  5. Step 5: Solve for x
    x = 150,649,337.81/13,267.76
  6. Step 6: Final answer
    x = 11,354.54

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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.