Home / 12,814.21-19,221.20-4,049.13

Finding the Fourth Proportional to 12,814.21, 19,221.20 and 4,049.13

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Solution

The fourth proportional to 12,814.21, 19,221.20 and 4,049.13 is: 6,073.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,814.21 : 19,221.20 = 4,049.13 : x
  2. Step 2: Convert to fraction form
    12,814.21/19,221.20 = 4,049.13/x
  3. Step 3: Cross multiply
    12,814.21x = 19,221.20 × 4,049.13
  4. Step 4: Simplify right side
    12,814.21x = 77,829,137.56
  5. Step 5: Solve for x
    x = 77,829,137.56/12,814.21
  6. Step 6: Final answer
    x = 6,073.66

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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.