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Finding the Fourth Proportional to 7,811.55, 11,715.62 and 2,263.73

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Solution

The fourth proportional to 7,811.55, 11,715.62 and 2,263.73 is: 3,395.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.55 : 11,715.62 = 2,263.73 : x
  2. Step 2: Convert to fraction form
    7,811.55/11,715.62 = 2,263.73/x
  3. Step 3: Cross multiply
    7,811.55x = 11,715.62 × 2,263.73
  4. Step 4: Simplify right side
    7,811.55x = 26,520,930.57
  5. Step 5: Solve for x
    x = 26,520,930.57/7,811.55
  6. Step 6: Final answer
    x = 3,395.09

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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.