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Finding the Fourth Proportional to 7,906.66, 10,911.30 and 4,369.80

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Solution

The fourth proportional to 7,906.66, 10,911.30 and 4,369.80 is: 6,030.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,906.66 : 10,911.30 = 4,369.80 : x
  2. Step 2: Convert to fraction form
    7,906.66/10,911.30 = 4,369.80/x
  3. Step 3: Cross multiply
    7,906.66x = 10,911.30 × 4,369.80
  4. Step 4: Simplify right side
    7,906.66x = 47,680,198.74
  5. Step 5: Solve for x
    x = 47,680,198.74/7,906.66
  6. Step 6: Final answer
    x = 6,030.38

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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.