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Finding the Fourth Proportional to 6,908.10, 10,288.88 and 6,874.62

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Solution

The fourth proportional to 6,908.10, 10,288.88 and 6,874.62 is: 10,239.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,908.10 : 10,288.88 = 6,874.62 : x
  2. Step 2: Convert to fraction form
    6,908.10/10,288.88 = 6,874.62/x
  3. Step 3: Cross multiply
    6,908.10x = 10,288.88 × 6,874.62
  4. Step 4: Simplify right side
    6,908.10x = 70,732,105.85
  5. Step 5: Solve for x
    x = 70,732,105.85/6,908.10
  6. Step 6: Final answer
    x = 10,239.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.