Home / 13,212.12-19,821.11-4,446.75

Finding the Fourth Proportional to 13,212.12, 19,821.11 and 4,446.75

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Solution

The fourth proportional to 13,212.12, 19,821.11 and 4,446.75 is: 6,671.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.12 : 19,821.11 = 4,446.75 : x
  2. Step 2: Convert to fraction form
    13,212.12/19,821.11 = 4,446.75/x
  3. Step 3: Cross multiply
    13,212.12x = 19,821.11 × 4,446.75
  4. Step 4: Simplify right side
    13,212.12x = 88,139,498.66
  5. Step 5: Solve for x
    x = 88,139,498.66/13,212.12
  6. Step 6: Final answer
    x = 6,671.11

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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.