Home / 11,764.35-16,235.66-7,778.55

Finding the Fourth Proportional to 11,764.35, 16,235.66 and 7,778.55

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Solution

The fourth proportional to 11,764.35, 16,235.66 and 7,778.55 is: 10,734.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,764.35 : 16,235.66 = 7,778.55 : x
  2. Step 2: Convert to fraction form
    11,764.35/16,235.66 = 7,778.55/x
  3. Step 3: Cross multiply
    11,764.35x = 16,235.66 × 7,778.55
  4. Step 4: Simplify right side
    11,764.35x = 126,289,854.20
  5. Step 5: Solve for x
    x = 126,289,854.20/11,764.35
  6. Step 6: Final answer
    x = 10,734.96

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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.