Home / 7,776.60-10,731.39-4,239.73

Finding the Fourth Proportional to 7,776.60, 10,731.39 and 4,239.73

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Solution

The fourth proportional to 7,776.60, 10,731.39 and 4,239.73 is: 5,850.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776.60 : 10,731.39 = 4,239.73 : x
  2. Step 2: Convert to fraction form
    7,776.60/10,731.39 = 4,239.73/x
  3. Step 3: Cross multiply
    7,776.60x = 10,731.39 × 4,239.73
  4. Step 4: Simplify right side
    7,776.60x = 45,498,233.55
  5. Step 5: Solve for x
    x = 45,498,233.55/7,776.60
  6. Step 6: Final answer
    x = 5,850.66

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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.