Home / 7,771.17-11,662.56-4,479.87

Finding the Fourth Proportional to 7,771.17, 11,662.56 and 4,479.87

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Solution

The fourth proportional to 7,771.17, 11,662.56 and 4,479.87 is: 6,723.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771.17 : 11,662.56 = 4,479.87 : x
  2. Step 2: Convert to fraction form
    7,771.17/11,662.56 = 4,479.87/x
  3. Step 3: Cross multiply
    7,771.17x = 11,662.56 × 4,479.87
  4. Step 4: Simplify right side
    7,771.17x = 52,246,752.67
  5. Step 5: Solve for x
    x = 52,246,752.67/7,771.17
  6. Step 6: Final answer
    x = 6,723.15

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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.