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Finding the Fourth Proportional to 6,864.54, 9,479.79 and 5,863.99

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Solution

The fourth proportional to 6,864.54, 9,479.79 and 5,863.99 is: 8,098.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.54 : 9,479.79 = 5,863.99 : x
  2. Step 2: Convert to fraction form
    6,864.54/9,479.79 = 5,863.99/x
  3. Step 3: Cross multiply
    6,864.54x = 9,479.79 × 5,863.99
  4. Step 4: Simplify right side
    6,864.54x = 55,589,317.04
  5. Step 5: Solve for x
    x = 55,589,317.04/6,864.54
  6. Step 6: Final answer
    x = 8,098.04

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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.