Home / 6,765.36-10,147.20-3,843.40

Finding the Fourth Proportional to 6,765.36, 10,147.20 and 3,843.40

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Solution

The fourth proportional to 6,765.36, 10,147.20 and 3,843.40 is: 5,764.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,765.36 : 10,147.20 = 3,843.40 : x
  2. Step 2: Convert to fraction form
    6,765.36/10,147.20 = 3,843.40/x
  3. Step 3: Cross multiply
    6,765.36x = 10,147.20 × 3,843.40
  4. Step 4: Simplify right side
    6,765.36x = 38,999,748.48
  5. Step 5: Solve for x
    x = 38,999,748.48/6,765.36
  6. Step 6: Final answer
    x = 5,764.62

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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.