Home / 11,419.57-15,758.92-6,383.80

Finding the Fourth Proportional to 11,419.57, 15,758.92 and 6,383.80

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Solution

The fourth proportional to 11,419.57, 15,758.92 and 6,383.80 is: 8,809.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,419.57 : 15,758.92 = 6,383.80 : x
  2. Step 2: Convert to fraction form
    11,419.57/15,758.92 = 6,383.80/x
  3. Step 3: Cross multiply
    11,419.57x = 15,758.92 × 6,383.80
  4. Step 4: Simplify right side
    11,419.57x = 100,601,761.58
  5. Step 5: Solve for x
    x = 100,601,761.58/11,419.57
  6. Step 6: Final answer
    x = 8,809.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.