Home / 11,761.35-16,231.52-7,775.55

Finding the Fourth Proportional to 11,761.35, 16,231.52 and 7,775.55

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Solution

The fourth proportional to 11,761.35, 16,231.52 and 7,775.55 is: 10,730.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,761.35 : 16,231.52 = 7,775.55 : x
  2. Step 2: Convert to fraction form
    11,761.35/16,231.52 = 7,775.55/x
  3. Step 3: Cross multiply
    11,761.35x = 16,231.52 × 7,775.55
  4. Step 4: Simplify right side
    11,761.35x = 126,208,956.46
  5. Step 5: Solve for x
    x = 126,208,956.46/11,761.35
  6. Step 6: Final answer
    x = 10,730.82

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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.