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Finding the Fourth Proportional to 8,908.01, 12,282.99 and 6,662.69

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Solution

The fourth proportional to 8,908.01, 12,282.99 and 6,662.69 is: 9,186.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.01 : 12,282.99 = 6,662.69 : x
  2. Step 2: Convert to fraction form
    8,908.01/12,282.99 = 6,662.69/x
  3. Step 3: Cross multiply
    8,908.01x = 12,282.99 × 6,662.69
  4. Step 4: Simplify right side
    8,908.01x = 81,837,751.78
  5. Step 5: Solve for x
    x = 81,837,751.78/8,908.01
  6. Step 6: Final answer
    x = 9,186.99

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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.