Home / 13,874.99-20,857.59-11,131.67

Finding the Fourth Proportional to 13,874.99, 20,857.59 and 11,131.67

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Solution

The fourth proportional to 13,874.99, 20,857.59 and 11,131.67 is: 16,733.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,874.99 : 20,857.59 = 11,131.67 : x
  2. Step 2: Convert to fraction form
    13,874.99/20,857.59 = 11,131.67/x
  3. Step 3: Cross multiply
    13,874.99x = 20,857.59 × 11,131.67
  4. Step 4: Simplify right side
    13,874.99x = 232,179,861.02
  5. Step 5: Solve for x
    x = 232,179,861.02/13,874.99
  6. Step 6: Final answer
    x = 16,733.70

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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.