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Finding the Fourth Proportional to 6,788.76, 9,369.04 and 3,994.80

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Solution

The fourth proportional to 6,788.76, 9,369.04 and 3,994.80 is: 5,513.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,788.76 : 9,369.04 = 3,994.80 : x
  2. Step 2: Convert to fraction form
    6,788.76/9,369.04 = 3,994.80/x
  3. Step 3: Cross multiply
    6,788.76x = 9,369.04 × 3,994.80
  4. Step 4: Simplify right side
    6,788.76x = 37,427,440.99
  5. Step 5: Solve for x
    x = 37,427,440.99/6,788.76
  6. Step 6: Final answer
    x = 5,513.15

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Double scale
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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.