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Finding the Fourth Proportional to 7,815.03, 10,759.77 and 6,327.87

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Solution

The fourth proportional to 7,815.03, 10,759.77 and 6,327.87 is: 8,712.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.03 : 10,759.77 = 6,327.87 : x
  2. Step 2: Convert to fraction form
    7,815.03/10,759.77 = 6,327.87/x
  3. Step 3: Cross multiply
    7,815.03x = 10,759.77 × 6,327.87
  4. Step 4: Simplify right side
    7,815.03x = 68,086,425.79
  5. Step 5: Solve for x
    x = 68,086,425.79/7,815.03
  6. Step 6: Final answer
    x = 8,712.24

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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.