Home / 13,213.22-19,821.87-4,447.45

Finding the Fourth Proportional to 13,213.22, 19,821.87 and 4,447.45

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Solution

The fourth proportional to 13,213.22, 19,821.87 and 4,447.45 is: 6,671.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.22 : 19,821.87 = 4,447.45 : x
  2. Step 2: Convert to fraction form
    13,213.22/19,821.87 = 4,447.45/x
  3. Step 3: Cross multiply
    13,213.22x = 19,821.87 × 4,447.45
  4. Step 4: Simplify right side
    13,213.22x = 88,156,775.73
  5. Step 5: Solve for x
    x = 88,156,775.73/13,213.22
  6. Step 6: Final answer
    x = 6,671.86

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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.