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Finding the Fourth Proportional to 8,662.09, 12,993.95 and 2,422.10

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Solution

The fourth proportional to 8,662.09, 12,993.95 and 2,422.10 is: 3,633.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,662.09 : 12,993.95 = 2,422.10 : x
  2. Step 2: Convert to fraction form
    8,662.09/12,993.95 = 2,422.10/x
  3. Step 3: Cross multiply
    8,662.09x = 12,993.95 × 2,422.10
  4. Step 4: Simplify right side
    8,662.09x = 31,472,663.12
  5. Step 5: Solve for x
    x = 31,472,663.12/8,662.09
  6. Step 6: Final answer
    x = 3,633.38

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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.