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Finding the Fourth Proportional to 7,998.76, 11,998.20 and 5,226.76

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Solution

The fourth proportional to 7,998.76, 11,998.20 and 5,226.76 is: 7,840.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.76 : 11,998.20 = 5,226.76 : x
  2. Step 2: Convert to fraction form
    7,998.76/11,998.20 = 5,226.76/x
  3. Step 3: Cross multiply
    7,998.76x = 11,998.20 × 5,226.76
  4. Step 4: Simplify right side
    7,998.76x = 62,711,711.83
  5. Step 5: Solve for x
    x = 62,711,711.83/7,998.76
  6. Step 6: Final answer
    x = 7,840.18

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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.