Home / 14,122.11-21,149.75-12,263.12

Finding the Fourth Proportional to 14,122.11, 21,149.75 and 12,263.12

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Solution

The fourth proportional to 14,122.11, 21,149.75 and 12,263.12 is: 18,365.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.11 : 21,149.75 = 12,263.12 : x
  2. Step 2: Convert to fraction form
    14,122.11/21,149.75 = 12,263.12/x
  3. Step 3: Cross multiply
    14,122.11x = 21,149.75 × 12,263.12
  4. Step 4: Simplify right side
    14,122.11x = 259,361,922.22
  5. Step 5: Solve for x
    x = 259,361,922.22/14,122.11
  6. Step 6: Final answer
    x = 18,365.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.