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Finding the Fourth Proportional to 7,895.45, 10,908.79 and 6,229.53

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Solution

The fourth proportional to 7,895.45, 10,908.79 and 6,229.53 is: 8,607.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,895.45 : 10,908.79 = 6,229.53 : x
  2. Step 2: Convert to fraction form
    7,895.45/10,908.79 = 6,229.53/x
  3. Step 3: Cross multiply
    7,895.45x = 10,908.79 × 6,229.53
  4. Step 4: Simplify right side
    7,895.45x = 67,956,634.57
  5. Step 5: Solve for x
    x = 67,956,634.57/7,895.45
  6. Step 6: Final answer
    x = 8,607.06

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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.