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Finding the Fourth Proportional to 8,765.80, 13,132.29 and 6,808.43

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Solution

The fourth proportional to 8,765.80, 13,132.29 and 6,808.43 is: 10,199.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.80 : 13,132.29 = 6,808.43 : x
  2. Step 2: Convert to fraction form
    8,765.80/13,132.29 = 6,808.43/x
  3. Step 3: Cross multiply
    8,765.80x = 13,132.29 × 6,808.43
  4. Step 4: Simplify right side
    8,765.80x = 89,410,277.20
  5. Step 5: Solve for x
    x = 89,410,277.20/8,765.80
  6. Step 6: Final answer
    x = 10,199.90

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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.