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Finding the Fourth Proportional to 7,825.80, 10,801.02 and 4,994.04

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Solution

The fourth proportional to 7,825.80, 10,801.02 and 4,994.04 is: 6,892.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.80 : 10,801.02 = 4,994.04 : x
  2. Step 2: Convert to fraction form
    7,825.80/10,801.02 = 4,994.04/x
  3. Step 3: Cross multiply
    7,825.80x = 10,801.02 × 4,994.04
  4. Step 4: Simplify right side
    7,825.80x = 53,940,725.92
  5. Step 5: Solve for x
    x = 53,940,725.92/7,825.80
  6. Step 6: Final answer
    x = 6,892.68

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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.