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Finding the Fourth Proportional to 8,626.79, 12,942.92 and 6,549.14

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Solution

The fourth proportional to 8,626.79, 12,942.92 and 6,549.14 is: 9,825.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.79 : 12,942.92 = 6,549.14 : x
  2. Step 2: Convert to fraction form
    8,626.79/12,942.92 = 6,549.14/x
  3. Step 3: Cross multiply
    8,626.79x = 12,942.92 × 6,549.14
  4. Step 4: Simplify right side
    8,626.79x = 84,765,043.82
  5. Step 5: Solve for x
    x = 84,765,043.82/8,626.79
  6. Step 6: Final answer
    x = 9,825.79

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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.