Home / 13,212.97-19,821.50-4,447.20

Finding the Fourth Proportional to 13,212.97, 19,821.50 and 4,447.20

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Solution

The fourth proportional to 13,212.97, 19,821.50 and 4,447.20 is: 6,671.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.97 : 19,821.50 = 4,447.20 : x
  2. Step 2: Convert to fraction form
    13,212.97/19,821.50 = 4,447.20/x
  3. Step 3: Cross multiply
    13,212.97x = 19,821.50 × 4,447.20
  4. Step 4: Simplify right side
    13,212.97x = 88,150,174.80
  5. Step 5: Solve for x
    x = 88,150,174.80/13,212.97
  6. Step 6: Final answer
    x = 6,671.49

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Double scale
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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.