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Finding the Fourth Proportional to 8,812.98, 13,216.20 and 6,179.14

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Solution

The fourth proportional to 8,812.98, 13,216.20 and 6,179.14 is: 9,266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.98 : 13,216.20 = 6,179.14 : x
  2. Step 2: Convert to fraction form
    8,812.98/13,216.20 = 6,179.14/x
  3. Step 3: Cross multiply
    8,812.98x = 13,216.20 × 6,179.14
  4. Step 4: Simplify right side
    8,812.98x = 81,664,750.07
  5. Step 5: Solve for x
    x = 81,664,750.07/8,812.98
  6. Step 6: Final answer
    x = 9,266.42

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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.