Home / 9,212.82-13,819.20-4,279.74

Finding the Fourth Proportional to 9,212.82, 13,819.20 and 4,279.74

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Solution

The fourth proportional to 9,212.82, 13,819.20 and 4,279.74 is: 6,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,212.82 : 13,819.20 = 4,279.74 : x
  2. Step 2: Convert to fraction form
    9,212.82/13,819.20 = 4,279.74/x
  3. Step 3: Cross multiply
    9,212.82x = 13,819.20 × 4,279.74
  4. Step 4: Simplify right side
    9,212.82x = 59,142,583.01
  5. Step 5: Solve for x
    x = 59,142,583.01/9,212.82
  6. Step 6: Final answer
    x = 6,419.60

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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.