Home / 13,493.22-18,622.92-9,966.66

Finding the Fourth Proportional to 13,493.22, 18,622.92 and 9,966.66

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Solution

The fourth proportional to 13,493.22, 18,622.92 and 9,966.66 is: 13,755.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,493.22 : 18,622.92 = 9,966.66 : x
  2. Step 2: Convert to fraction form
    13,493.22/18,622.92 = 9,966.66/x
  3. Step 3: Cross multiply
    13,493.22x = 18,622.92 × 9,966.66
  4. Step 4: Simplify right side
    13,493.22x = 185,608,311.85
  5. Step 5: Solve for x
    x = 185,608,311.85/13,493.22
  6. Step 6: Final answer
    x = 13,755.67

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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.