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Finding the Fourth Proportional to 6,871.64, 10,286.95 and 6,754.08

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Solution

The fourth proportional to 6,871.64, 10,286.95 and 6,754.08 is: 10,110.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.64 : 10,286.95 = 6,754.08 : x
  2. Step 2: Convert to fraction form
    6,871.64/10,286.95 = 6,754.08/x
  3. Step 3: Cross multiply
    6,871.64x = 10,286.95 × 6,754.08
  4. Step 4: Simplify right side
    6,871.64x = 69,478,917.61
  5. Step 5: Solve for x
    x = 69,478,917.61/6,871.64
  6. Step 6: Final answer
    x = 10,110.97

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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.