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Finding the Fourth Proportional to 8,710.80, 13,066.20 and 3,163.12

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Solution

The fourth proportional to 8,710.80, 13,066.20 and 3,163.12 is: 4,744.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.80 : 13,066.20 = 3,163.12 : x
  2. Step 2: Convert to fraction form
    8,710.80/13,066.20 = 3,163.12/x
  3. Step 3: Cross multiply
    8,710.80x = 13,066.20 × 3,163.12
  4. Step 4: Simplify right side
    8,710.80x = 41,329,958.54
  5. Step 5: Solve for x
    x = 41,329,958.54/8,710.80
  6. Step 6: Final answer
    x = 4,744.68

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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.